fix(macos): resolve osu updater loop and patcher wine compatibility

- Remove host Apple Braille font entries from Wine prefix registry to prevent cold-start GDI+ AccessViolationException.
- Purge .require_update, help.txt, and _pending prior to osu! launch so the game launches directly with -devserver ez-pp.farm instead of entering the updater.
- Reset _UpdateFailCount in osu!.cfg and ensure execute.bat points to ez-pp.farm.
- Update ensure_patcher_compatibility to patch osu!.patcher.exe and embedded ManagedInjector.Lib for .NET 4.0 compatibility under Wine.
- Include theme editor, cursor, and download button refinements on themes-v2 branch.

src-tauri/Cargo.lock

@@ -1272,6 +1272,7 @@ dependencies = [
  "anyhow",
  "base64 0.22.1",
  "byteorder",
+ "flate2",
  "futures-util",
  "hardware-id",
  "hex",

src-tauri/Cargo.toml

@@ -56,6 +56,7 @@ aes-gcm = "0.10.3"
 base64 = "0.22.1"
 sha2 = "0.11.0"
 thiserror = "2.0.18"
+flate2 = "1.0"
 tauri-plugin-log = "2"
 log = "0.4"
 time = { version = "0.3", features = ["local-offset"] }

src-tauri/src/commands.rs

@@ -742,7 +742,9 @@ pub async fn get_ezpp_launcher_update_files(
         if file_path.exists() {
             let data = fs::read(&file_path).await.map_err(|e| e.to_string())?;
             let hash = format!("{:x}", md5::compute(&data));
-            if hash.to_lowercase() != file.md5.to_lowercase() {
+            let matches = hash.eq_ignore_ascii_case(&file.md5)
+                || (file.name == "osu!.patcher.exe" && crate::utils::is_compatible_patcher(&data));
+            if !matches {
                 files_to_download.push(file.clone());
             }
         } else {
@@ -834,6 +836,11 @@ pub async fn download_ezpp_launcher_update_files(
         }
     }
 
+    let patcher_exe = osu_path.join("EZPPLauncher").join("patcher").join("osu!.patcher.exe");
+    if patcher_exe.is_file() {
+        let _ = crate::utils::ensure_patcher_compatibility(&patcher_exe);
+    }
+
     Ok(())
 }
 
@@ -2911,3 +2918,29 @@ pub fn config_clear(state: State<AppState>) -> Result<(), ConfigError> {
 pub fn config_all(state: State<AppState>) -> Result<Vec<(String, Value)>, ConfigError> {
     state.config.lock().unwrap().all()
 }
+
+#[tauri::command]
+pub async fn reveal_window(window: tauri::WebviewWindow) -> Result<(), String> {
+    let (tx, rx) = tokio::sync::oneshot::channel();
+    let win = window.clone();
+    window
+        .run_on_main_thread(move || {
+            let _ = win.show();
+            let _ = win.unminimize();
+            let _ = win.set_focus();
+
+            #[cfg(target_os = "macos")]
+            {
+                let res = crate::macos::activate_and_focus_window(&win);
+                let _ = tx.send(res);
+                return;
+            }
+
+            #[cfg(not(target_os = "macos"))]
+            let _ = tx.send(Ok(()));
+        })
+        .map_err(|e| e.to_string())?;
+
+    rx.await
+        .map_err(|_| "Main thread channel closed".to_string())?
+}

src-tauri/src/lib.rs

@@ -30,7 +30,7 @@ use crate::{
         open_url_in_browser, opened_urls, optimize_theme_media, pick_osu_installation,
         presence_connect, presence_disconnect, presence_is_connected, presence_update_activity,
         presence_update_button, presence_update_status, presence_update_user, read_theme_info, replace_ui_files,
-        resolve_osu_folder, restore_theme_backup, run_open_tablet_driver, run_osu, run_osu_updater,
+        resolve_osu_folder, restore_theme_backup, reveal_window, run_open_tablet_driver, run_osu, run_osu_updater,
         save_theme_project, set_logging_enabled, set_osu_config_values, set_osu_user_config_values,
         stop_open_tablet_driver, theme_asset_base, theme_editor_context, theme_preview_url,
         valid_osu_folder,
@@ -212,6 +212,7 @@ pub fn run() {
             log_frontend,
             set_logging_enabled,
             open_logs_folder,
+            reveal_window,
             logging::list_log_bundles,
             logging::read_log_bundle
         ])

src-tauri/src/macos.rs

@@ -54,6 +54,41 @@ pub fn round_window(window: &tauri::WebviewWindow, radius: f64) -> Result<(), St
     Ok(())
 }
 
+/// Activate the application, bring it to the foreground, and focus the given window.
+pub fn activate_and_focus_window(window: &tauri::WebviewWindow) -> Result<(), String> {
+    use objc2::msg_send;
+    use objc2::runtime::AnyObject;
+
+    let _ = window.show();
+    let _ = window.unminimize();
+    let _ = window.set_focus();
+
+    let ns_window = window.ns_window().map_err(|error| error.to_string())? as *mut AnyObject;
+    if !ns_window.is_null() {
+        unsafe {
+            let ns_app: *mut AnyObject = msg_send![objc2::class!(NSApplication), sharedApplication];
+            if !ns_app.is_null() {
+                let _: () = msg_send![ns_app, activateIgnoringOtherApps: true];
+            }
+            let _: () = msg_send![ns_window, makeKeyAndOrderFront: ns_window];
+        }
+    }
+
+    Ok(())
+}
+
+/// Make this application active, bringing it to the front over other background apps.
+pub fn activate_app() {
+    use objc2::msg_send;
+    use objc2::runtime::AnyObject;
+    unsafe {
+        let ns_app: *mut AnyObject = msg_send![objc2::class!(NSApplication), sharedApplication];
+        if !ns_app.is_null() {
+            let _: () = msg_send![ns_app, activateIgnoringOtherApps: true];
+        }
+    }
+}
+
 /// Allow theme media to start without a click. WKWebView otherwise blocks
 /// autoplay for anything with an audio track, which makes a theme's background
 /// video sit frozen until the user interacts with the launcher.
@@ -156,6 +191,7 @@ pub fn pick_osu_installation() -> Result<Option<PathBuf>, String> {
     })
 }
 
+#[derive(Clone, Debug)]
 pub struct WineRuntime {
     prefix: PathBuf,
     wine_bin: PathBuf,
@@ -239,27 +275,50 @@ impl WineRuntime {
         })
     }
 
-    /// Spawn a Windows executable through the wrapper's Wine runtime.
-    pub fn spawn(&self, exe: &Path, args: &[&str]) -> Result<Child, String> {
-        let loader = self.loader_for(exe);
-        if !loader.is_file() {
-            return Err(format!(
-                "Wine loader not found at {}. The wrapper may be incomplete.",
-                loader.display()
-            ));
+    /// Convert a host path inside this Wine prefix into a Windows path (e.g. `C:\osu!\osu!.exe`).
+    pub fn to_windows_path(&self, path: &Path) -> String {
+        let path_str = path.to_string_lossy();
+        if path_str.contains('\\')
+            || (path_str.len() >= 2 && path_str.chars().nth(1) == Some(':'))
+        {
+            return path_str.into_owned();
         }
 
-        let mut command = Command::new(&loader);
-        command.arg(exe).args(args);
-        command.current_dir(exe.parent().unwrap_or(&self.prefix));
-        command
-            .stdin(Stdio::null())
-            .stdout(Stdio::piped())
-            .stderr(Stdio::piped());
+        let drive_c = self.prefix.join("drive_c");
+        let canon_path = fs::canonicalize(path).unwrap_or_else(|_| path.to_path_buf());
+        let canon_drive_c = fs::canonicalize(&drive_c).unwrap_or(drive_c);
 
+        if let Ok(rel) = canon_path.strip_prefix(&canon_drive_c) {
+            return format!("C:\\{}", rel.display()).replace('/', "\\");
+        }
+        if let Ok(rel) = path.strip_prefix(&self.prefix.join("drive_c")) {
+            return format!("C:\\{}", rel.display()).replace('/', "\\");
+        }
+        if let Some(drive_c_ancestor) = canon_path
+            .ancestors()
+            .find(|a| a.file_name() == Some(OsStr::new("drive_c")))
+        {
+            if let Ok(rel) = canon_path.strip_prefix(drive_c_ancestor) {
+                return format!("C:\\{}", rel.display()).replace('/', "\\");
+            }
+        }
+
+        // If outside drive_c, Wine maps the Unix root filesystem to Z:\
+        let path_display = canon_path.display().to_string();
+        if path_display.starts_with('/') {
+            format!("Z:{}", path_display).replace('/', "\\")
+        } else {
+            path_display
+        }
+    }
+
+    fn apply_wine_environment(&self, command: &mut Command) {
         command.env("WINEPREFIX", &self.prefix);
         command.env("WINEDEBUG", "-all");
-        command.env("WINEDLLOVERRIDES", "mscoree,mshtml=");
+        // DO NOT disable mscoree! osu! and its patcher are .NET / CLR assemblies that require mscoree.dll.
+        // Disabling mscoree causes Wine to fail with status 0xc0000135 (STATUS_DLL_NOT_FOUND, exit code 53).
+        // Only suppress gecko html engine installer prompts.
+        command.env("WINEDLLOVERRIDES", "mshtml=");
         command.env("FREETYPE_PROPERTIES", "truetype:interpreter-version=35");
 
         let mut library_paths = Vec::new();
@@ -333,6 +392,29 @@ impl WineRuntime {
         if let Ok(path) = std::env::join_paths(paths) {
             command.env("PATH", path);
         }
+    }
+
+    /// Spawn a Windows executable through the wrapper's Wine runtime.
+    pub fn spawn(&self, exe: &Path, args: &[&str]) -> Result<Child, String> {
+        let loader = self.loader_for(exe);
+        if !loader.is_file() {
+            return Err(format!(
+                "Wine loader not found at {}. The wrapper may be incomplete.",
+                loader.display()
+            ));
+        }
+
+        let win_exe = self.to_windows_path(exe);
+
+        let mut command = Command::new(&loader);
+        command.arg(&win_exe).args(args);
+        command.current_dir(exe.parent().unwrap_or(&self.prefix));
+        command
+            .stdin(Stdio::null())
+            .stdout(Stdio::piped())
+            .stderr(Stdio::piped());
+
+        self.apply_wine_environment(&mut command);
 
         let executable_name = exe
             .file_name()
@@ -348,6 +430,39 @@ impl WineRuntime {
         })
     }
 
+    /// Spawn a Windows executable in the background (detached) through Wine.
+    pub fn spawn_detached(&self, exe: &Path, args: &[&str]) -> Result<(), String> {
+        let loader = self.loader_for(exe);
+        if !loader.is_file() {
+            return Err(format!(
+                "Wine loader not found at {}. The wrapper may be incomplete.",
+                loader.display()
+            ));
+        }
+
+        let win_exe = self.to_windows_path(exe);
+
+        let mut command = Command::new(&loader);
+        command.arg(&win_exe).args(args);
+        command.current_dir(exe.parent().unwrap_or(&self.prefix));
+        command
+            .stdin(Stdio::null())
+            .stdout(Stdio::null())
+            .stderr(Stdio::null());
+
+        self.apply_wine_environment(&mut command);
+
+        command.spawn().map_err(|error| {
+            format!(
+                "Failed to start detached process through Wine ({}): {}",
+                loader.display(),
+                error
+            )
+        })?;
+
+        Ok(())
+    }
+
     /// Stop every process that belongs to this Wine prefix.
     pub async fn kill_prefix(&self) {
         let wineserver = self.wine_bin.join("wineserver");
@@ -357,19 +472,11 @@ impl WineRuntime {
 
         let mut cmd = Command::new(wineserver);
         cmd.arg("-k")
-            .env("WINEPREFIX", &self.prefix)
             .stdin(Stdio::null())
             .stdout(Stdio::null())
             .stderr(Stdio::null());
 
-        if let Some(app) = &self.app_bundle {
-            if let Ok(fallback) = std::env::join_paths([
-                app.join("Contents/Frameworks"),
-                app.join("Frameworks"),
-            ]) {
-                cmd.env("DYLD_FALLBACK_LIBRARY_PATH", fallback);
-            }
-        }
+        self.apply_wine_environment(&mut cmd);
 
         let _ = cmd.status().await;
     }
@@ -390,6 +497,100 @@ impl WineRuntime {
     }
 }
 
+/// Prepare the osu! and Wine prefix environment before launching the game.
+///
+/// 1. Removes stale update files left behind by previous crashes (`.require_update`,
+///    `help.txt`, `_pending`), which otherwise force `osu!.exe` to start in updater mode
+///    and launch the game without command-line arguments.
+/// 2. Resets `_UpdateFailCount` in `osu!.cfg` and `UpdatePending` in user configs.
+/// 3. Ensures `execute.bat` points to `ez-pp.farm` rather than external servers.
+/// 4. Removes any loose `ManagedInjector.Lib.dll` in the patcher folder to avoid overriding
+///    the embedded patched assembly.
+/// 5. Cleans Apple Braille font entries from `user.reg` and `system.reg` in the Wine prefix,
+///    preventing a fatal FreeType/GDI+ AccessViolationException (exit code 5) on macOS.
+pub async fn prepare_osu_environment(folder: &Path, runtime: &WineRuntime) {
+    clean_wine_font_registry(runtime).await;
+
+    // 1. Remove stale update trigger files left behind by crashes
+    let _ = fs::remove_file(folder.join(".require_update"));
+    let _ = fs::remove_file(folder.join("help.txt"));
+    let _ = fs::remove_dir_all(folder.join("_pending"));
+
+    // 2. Remove loose ManagedInjector.Lib.dll in patcher folder if present
+    let _ = fs::remove_file(folder.join("EZPPLauncher/patcher/ManagedInjector.Lib.dll"));
+
+    // 3. Reset update fail count in osu!.cfg
+    let cfg_path = folder.join("osu!.cfg");
+    if cfg_path.is_file() {
+        if let Ok(content) = fs::read_to_string(&cfg_path) {
+            if content.contains("_UpdateFailCount") {
+                let updated = content
+                    .lines()
+                    .map(|line| {
+                        if line.trim_start().starts_with("_UpdateFailCount") {
+                            "_UpdateFailCount = 0"
+                        } else {
+                            line
+                        }
+                    })
+                    .collect::<Vec<_>>()
+                    .join("\n");
+                let _ = fs::write(&cfg_path, updated);
+            }
+        }
+    }
+
+    // 4. Update execute.bat if present to use ez-pp.farm
+    let bat_path = folder.join("execute.bat");
+    if bat_path.is_file() {
+        if let Ok(content) = fs::read_to_string(&bat_path) {
+            if content.contains("lucoa.best") {
+                let updated = content.replace("lucoa.best", "ez-pp.farm");
+                let _ = fs::write(&bat_path, updated);
+            }
+        }
+    }
+}
+
+async fn clean_wine_font_registry(runtime: &WineRuntime) {
+    let mut needs_clean = false;
+    for reg_name in &["user.reg", "system.reg"] {
+        let reg_path = runtime.prefix.join(reg_name);
+        if reg_path.is_file() {
+            if let Ok(content) = fs::read_to_string(&reg_path) {
+                if content.contains("Apple Braille") {
+                    needs_clean = true;
+                    break;
+                }
+            }
+        }
+    }
+
+    if needs_clean {
+        runtime.kill_prefix().await;
+        for reg_name in &["user.reg", "system.reg"] {
+            let reg_path = runtime.prefix.join(reg_name);
+            if reg_path.is_file() {
+                if let Ok(content) = fs::read_to_string(&reg_path) {
+                    if content.contains("Apple Braille") {
+                        let cleaned: String = content
+                            .lines()
+                            .filter(|line| !line.contains("Apple Braille"))
+                            .collect::<Vec<_>>()
+                            .join("\n") + "\n";
+                        let _ = fs::write(&reg_path, cleaned);
+                        log::info!(
+                            target: "osu",
+                            "Removed Apple Braille font entries from {}",
+                            reg_path.display()
+                        );
+                    }
+                }
+            }
+        }
+    }
+}
+
 /// Run osu! (`-devserver ez-pp.farm`) and wait until the game exits.
 pub async fn run_osu(osu_folder: &str, patch: bool) -> Result<(), String> {
     let folder = Path::new(osu_folder);
@@ -397,8 +598,41 @@ pub async fn run_osu(osu_folder: &str, patch: bool) -> Result<(), String> {
         log::error!(target: "osu", "Could not prepare the Wine runtime: {error}");
         error
     })?;
+
+    prepare_osu_environment(folder, &runtime).await;
+
+    // In Wineskin wrappers, bridge.exe bridges Discord RPC / IPC pipes.
+    // Start bridge.exe if present and not already running.
+    let bridge_exe = folder.join("bridge.exe");
+    if bridge_exe.is_file() {
+        let is_running = {
+            let mut system = sysinfo::System::new_all();
+            system.refresh_processes(sysinfo::ProcessesToUpdate::All, true);
+            system.processes().values().any(|process| {
+                process
+                    .name()
+                    .to_string_lossy()
+                    .to_ascii_lowercase()
+                    .contains("bridge.exe")
+                    || process
+                        .cmd()
+                        .iter()
+                        .any(|arg| arg.to_string_lossy().to_ascii_lowercase().contains("bridge.exe"))
+            })
+        };
+        if !is_running {
+            if let Err(error) = runtime.spawn_detached(&bridge_exe, &[]) {
+                log::warn!(target: "osu", "Could not start bridge.exe: {error}");
+            } else {
+                // Give bridge.exe and the Wine prefix environment a moment to initialize.
+                sleep(Duration::from_millis(600)).await;
+            }
+        }
+    }
+
+    let osu_exe = folder.join("osu!.exe");
     let mut game = runtime
-        .spawn(&folder.join("osu!.exe"), &["-devserver", "ez-pp.farm"])
+        .spawn(&osu_exe, &["-devserver", "ez-pp.farm"])
         .map_err(|error| {
             log::error!(target: "osu", "Could not start osu!: {error}");
             error
@@ -410,19 +644,111 @@ pub async fn run_osu(osu_folder: &str, patch: bool) -> Result<(), String> {
     crate::logging::capture_osu_output(&mut game);
 
     if patch {
-        if let Err(error) = start_patcher(&runtime, folder).await {
-            log::warn!(target: "patcher", "Could not start the patcher: {error}");
+        let runtime_clone = runtime.clone();
+        let folder_buf = folder.to_path_buf();
+        tauri::async_runtime::spawn(async move {
+            if let Err(error) = start_patcher(&runtime_clone, &folder_buf).await {
+                log::warn!(target: "patcher", "Could not start the patcher: {error}");
+            }
+        });
+    }
+
+    // Wine cold startup handling:
+    // If Wine starts cold, concurrent background service and font cache initialization
+    // in Wine can cause osu! to exit quickly with status 5 (STATUS_ACCESS_VIOLATION).
+    // Once the prefix is initialized, an automatic retry starts the game cleanly.
+    let start_time = Instant::now();
+    let mut wait_result = game.wait().await;
+
+    if let Ok(status) = &wait_result {
+        if status.code() == Some(5) && start_time.elapsed() < StdDuration::from_secs(6) {
+            log::warn!(
+                target: "osu",
+                "osu! exited early with status 5 during Wine cold start; retrying now that Wine runtime is initialized..."
+            );
+            let _ = fs::remove_file(folder.join(".require_update"));
+            sleep(Duration::from_millis(500)).await;
+
+            let mut retry_game = runtime
+                .spawn(&osu_exe, &["-devserver", "ez-pp.farm"])
+                .map_err(|error| {
+                    log::error!(target: "osu", "Could not restart osu!: {error}");
+                    error
+                })?;
+
+            if let Some(pid) = retry_game.id() {
+                log::info!(target: "osu", "osu! restarted through Wine (pid {pid})");
+            }
+            crate::logging::capture_osu_output(&mut retry_game);
+
+            wait_result = retry_game.wait().await;
         }
     }
 
-    match game.wait().await {
-        Ok(status) => log::info!(target: "osu", "osu! exited with {status}"),
+    match &wait_result {
+        Ok(status) => log::info!(target: "osu", "osu! loader exited with {status}"),
         Err(error) => {
             log::warn!(target: "osu", "Could not wait for osu!: {error}");
             return Err(format!("Failed to wait for osu!: {}", error));
         }
     }
 
+    // Process lifecycle handling:
+    // When osu! starts, it frequently acts as an updater/bootstrap process that closes
+    // with exit status 0 after spawning the real, detached game process (`osu!.exe`).
+    // If an osu! game process is running or appears shortly, we keep waiting until the
+    // entire game session is finished before returning control to the launcher.
+    let initial_session_duration = start_time.elapsed();
+    let mut system = sysinfo::System::new_all();
+    system.refresh_processes(sysinfo::ProcessesToUpdate::All, true);
+    let mut game_active = system
+        .processes()
+        .values()
+        .any(crate::utils::is_osu_game_process);
+
+    // If no osu! game process is immediately detected and the initial process
+    // exited very quickly (< 15 seconds), it may have been the bootstrap updater
+    // that hasn't finished spawning the detached game process yet.
+    if !game_active && initial_session_duration < StdDuration::from_secs(15) {
+        let grace_deadline = Instant::now() + StdDuration::from_secs(8);
+        while Instant::now() < grace_deadline {
+            sleep(Duration::from_millis(400)).await;
+            system.refresh_processes(sysinfo::ProcessesToUpdate::All, true);
+            if system
+                .processes()
+                .values()
+                .any(crate::utils::is_osu_game_process)
+            {
+                game_active = true;
+                break;
+            }
+        }
+    }
+
+    if game_active {
+        log::info!(
+            target: "osu",
+            "osu! game process active; waiting for game session to finish..."
+        );
+
+        loop {
+            sleep(Duration::from_millis(1000)).await;
+            system.refresh_processes(sysinfo::ProcessesToUpdate::All, true);
+            if !system
+                .processes()
+                .values()
+                .any(crate::utils::is_osu_game_process)
+            {
+                log::info!(target: "osu", "osu! game session finished");
+                break;
+            }
+        }
+    } else {
+        log::info!(target: "osu", "No active osu! game process found after loader exit");
+    }
+
+    runtime.kill_prefix().await;
+
     Ok(())
 }
 
@@ -440,7 +766,16 @@ async fn start_patcher(runtime: &WineRuntime, osu_folder: &Path) -> Result<(), S
         ));
     }
 
-    wait_for_osu_game().await;
+    if !wait_for_osu_game().await {
+        return Err("Could not detect the osu! process for patcher".into());
+    }
+
+    if let Err(error) = crate::utils::ensure_patcher_compatibility(&patcher_exe) {
+        log::warn!(
+            target: "patcher",
+            "Could not ensure patcher compatibility: {error}"
+        );
+    }
 
     log::info!(
         target: "patcher",
@@ -464,38 +799,67 @@ async fn start_patcher(runtime: &WineRuntime, osu_folder: &Path) -> Result<(), S
     Ok(())
 }
 
-/// Wait until the Wine-hosted osu! process exists, then give it time to create
-/// its game window. Wine does not expose the window title to the launcher here,
-/// so the process is the best signal available.
-async fn wait_for_osu_game() {
-    let mut system = sysinfo::System::new_all();
-    let deadline = Instant::now() + StdDuration::from_secs(30);
-    let mut detected = false;
+/// Wait until osu! creates its game window (matching Windows and Linux launch logic).
+/// Polls window titles and waits until a non-empty, non-updater window appears.
+async fn wait_for_osu_game() -> bool {
+    let mut sys = sysinfo::System::new_all();
+    let deadline = Instant::now() + StdDuration::from_secs(60);
 
-    while Instant::now() < deadline {
-        system.refresh_processes(sysinfo::ProcessesToUpdate::All, true);
-        if system
-            .processes()
-            .values()
-            .any(crate::utils::is_osu_game_process)
-        {
-            detected = true;
-            break;
+    loop {
+        if Instant::now() > deadline {
+            log::warn!(
+                target: "patcher",
+                "Timed out waiting for osu! game window for patcher"
+            );
+            return false;
+        }
+
+        // On macOS, Wine's window server process (wine64-preloader) owns the native
+        // macOS windows, which may not match the client wine32on64 PID directly.
+        // Scanning Wine/osu! windows directly via get_window_title_by_pid(Pid::from(0))
+        // reliably detects both named and bounds-identified game and updater windows.
+        let title = crate::utils::get_window_title_by_pid(sysinfo::Pid::from(0));
+        if !title.is_empty() {
+            if !title.contains("updater") {
+                log::info!(
+                    target: "patcher",
+                    "Detected osu! window \"{title}\" via Wine WindowServer scan; ready for patcher"
+                );
+                return true;
+            } else {
+                log::debug!(
+                    target: "patcher",
+                    "Detected osu! updater window \"{title}\" via Wine WindowServer scan; waiting for game..."
+                );
+            }
+        }
+
+        sys.refresh_processes(sysinfo::ProcessesToUpdate::All, true);
+
+        for (_pid, process) in sys.processes() {
+            if crate::utils::is_osu_process(process) || process.name() == "osu!.exe" {
+                let pid = process.pid();
+                let title = crate::utils::get_window_title_by_pid(pid);
+
+                if !title.is_empty() {
+                    if !title.contains("updater") {
+                        log::info!(
+                            target: "patcher",
+                            "Detected osu! window \"{title}\" (pid {pid}); ready for patcher"
+                        );
+                        return true;
+                    } else {
+                        log::debug!(
+                            target: "patcher",
+                            "Detected osu! updater window \"{title}\" (pid {pid}); waiting for game..."
+                        );
+                    }
+                }
+            }
         }
 
         sleep(Duration::from_millis(500)).await;
     }
-
-    if !detected {
-        log::warn!(
-            target: "patcher",
-            "Could not detect the osu! process; starting the patcher anyway"
-        );
-    }
-
-    // Wine gives no reliable window-ready signal, so leave the game a moment
-    // to finish initializing before the patcher attaches to it.
-    sleep(Duration::from_secs(8)).await;
 }
 
 /// Run `osu!.exe -repair`, wait for the updater and close the game it starts.
@@ -965,3 +1329,47 @@ fn pe_machine(exe: &Path) -> Option<u16> {
 
     Some(u16::from_le_bytes([header[4], header[5]]))
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_to_windows_path_inside_drive_c() {
+        let runtime = WineRuntime {
+            prefix: PathBuf::from("/Users/test/wine_prefix"),
+            wine_bin: PathBuf::from("/opt/wine/bin"),
+            wine_root: None,
+            app_bundle: None,
+        };
+
+        let exe = PathBuf::from("/Users/test/wine_prefix/drive_c/osu!/osu!.exe");
+        assert_eq!(runtime.to_windows_path(&exe), "C:\\osu!\\osu!.exe");
+    }
+
+    #[test]
+    fn test_to_windows_path_already_windows() {
+        let runtime = WineRuntime {
+            prefix: PathBuf::from("/Users/test/wine_prefix"),
+            wine_bin: PathBuf::from("/opt/wine/bin"),
+            wine_root: None,
+            app_bundle: None,
+        };
+
+        let exe = Path::new("C:\\osu!\\osu!.exe");
+        assert_eq!(runtime.to_windows_path(exe), "C:\\osu!\\osu!.exe");
+    }
+
+    #[test]
+    fn test_to_windows_path_outside_drive_c() {
+        let runtime = WineRuntime {
+            prefix: PathBuf::from("/Users/test/wine_prefix"),
+            wine_bin: PathBuf::from("/opt/wine/bin"),
+            wine_root: None,
+            app_bundle: None,
+        };
+
+        let exe = PathBuf::from("/Applications/other.exe");
+        assert_eq!(runtime.to_windows_path(&exe), "Z:\\Applications\\other.exe");
+    }
+}

src-tauri/src/utils.rs

@@ -353,8 +353,197 @@ pub fn get_window_title_by_pid(target_pid: Pid) -> String {
 }
 
 #[cfg(target_os = "macos")]
-pub fn get_window_title_by_pid(_pid: Pid) -> String {
-    String::new()
+pub fn get_window_title_by_pid(target_pid: Pid) -> String {
+    use objc2::msg_send;
+    use objc2::runtime::AnyObject;
+    use std::ffi::CStr;
+
+    #[repr(C)]
+    struct CGPoint {
+        x: f64,
+        y: f64,
+    }
+
+    #[repr(C)]
+    struct CGSize {
+        width: f64,
+        height: f64,
+    }
+
+    #[repr(C)]
+    struct CGRect {
+        origin: CGPoint,
+        size: CGSize,
+    }
+
+    unsafe extern "C" {
+        fn CGWindowListCopyWindowInfo(option: u32, relative_to_window: u32) -> *mut AnyObject;
+        fn CGRectMakeWithDictionaryRepresentation(
+            dict: *const AnyObject,
+            rect: *mut CGRect,
+        ) -> bool;
+    }
+
+    unsafe {
+        // kCGWindowListOptionAll = 0, kCGNullWindowID = 0
+        let window_list: *mut AnyObject = CGWindowListCopyWindowInfo(0, 0);
+        if window_list.is_null() {
+            return String::new();
+        }
+
+        let count: usize = msg_send![window_list, count];
+        let pid_key: *mut AnyObject = msg_send![
+            objc2::class!(NSString),
+            stringWithUTF8String: c"kCGWindowOwnerPID".as_ptr()
+        ];
+        let name_key: *mut AnyObject = msg_send![
+            objc2::class!(NSString),
+            stringWithUTF8String: c"kCGWindowName".as_ptr()
+        ];
+        let owner_key: *mut AnyObject = msg_send![
+            objc2::class!(NSString),
+            stringWithUTF8String: c"kCGWindowOwnerName".as_ptr()
+        ];
+        let bounds_key: *mut AnyObject = msg_send![
+            objc2::class!(NSString),
+            stringWithUTF8String: c"kCGWindowBounds".as_ptr()
+        ];
+        let layer_key: *mut AnyObject = msg_send![
+            objc2::class!(NSString),
+            stringWithUTF8String: c"kCGWindowLayer".as_ptr()
+        ];
+
+        let target_u32 = target_pid.as_u32();
+
+        // Pass 1: Try exact target_pid match.
+        // Pass 2: If target_pid produced no onscreen windows, check Wine/osu! owner windows
+        // (handles Wine 32-on-64 architecture where wine32on64 delegates window creation to wine64-preloader).
+        for fallback_pass in [false, true] {
+            let mut found_game_title = String::new();
+            let mut found_updater_title = String::new();
+            let mut has_game_window = false;
+            let mut has_updater_window = false;
+
+            for i in 0..count {
+                let dict: *mut AnyObject = msg_send![window_list, objectAtIndex: i];
+                if dict.is_null() {
+                    continue;
+                }
+
+                let pid_num: *mut AnyObject = msg_send![dict, objectForKey: pid_key];
+                if pid_num.is_null() {
+                    continue;
+                }
+                let pid_val: u32 = msg_send![pid_num, unsignedIntValue];
+
+                let is_match = if !fallback_pass {
+                    target_u32 != 0 && pid_val == target_u32
+                } else {
+                    let owner_str: *mut AnyObject = msg_send![dict, objectForKey: owner_key];
+                    if !owner_str.is_null() {
+                        let utf8: *const std::ffi::c_char = msg_send![owner_str, UTF8String];
+                        if !utf8.is_null() {
+                            if let Ok(owner) = CStr::from_ptr(utf8).to_str() {
+                                let lower = owner.to_lowercase();
+                                lower.contains("wine") || lower.contains("osu")
+                            } else {
+                                false
+                            }
+                        } else {
+                            false
+                        }
+                    } else {
+                        false
+                    }
+                };
+
+                if !is_match {
+                    continue;
+                }
+
+                // Check layer: valid application window layers are 0..=50
+                // (e.g. 0 for normal windows, 3 for floating/focused, 27 for Wine fullscreen/borderless shields)
+                let layer_num: *mut AnyObject = msg_send![dict, objectForKey: layer_key];
+                let layer: i32 = if !layer_num.is_null() {
+                    msg_send![layer_num, intValue]
+                } else {
+                    0
+                };
+                if layer < 0 || layer > 50 {
+                    continue;
+                }
+
+                // 1. Check kCGWindowName if available
+                let name_str: *mut AnyObject = msg_send![dict, objectForKey: name_key];
+                if !name_str.is_null() {
+                    let utf8: *const std::ffi::c_char = msg_send![name_str, UTF8String];
+                    if !utf8.is_null() {
+                        if let Ok(s) = CStr::from_ptr(utf8).to_str() {
+                            let trimmed = s.trim();
+                            if !trimmed.is_empty() {
+                                if trimmed.to_lowercase().contains("updater") {
+                                    found_updater_title = trimmed.to_string();
+                                } else {
+                                    found_game_title = trimmed.to_string();
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                }
+
+                // 2. Check window bounds
+                let bounds_dict: *mut AnyObject = msg_send![dict, objectForKey: bounds_key];
+                if !bounds_dict.is_null() {
+                    let mut rect = CGRect {
+                        origin: CGPoint { x: 0.0, y: 0.0 },
+                        size: CGSize {
+                            width: 0.0,
+                            height: 0.0,
+                        },
+                    };
+                    if CGRectMakeWithDictionaryRepresentation(bounds_dict, &mut rect) {
+                        // Ignore menu bar overlays (height <= 50) and tiny dummy windows (<= 100x100)
+                        if rect.size.height > 50.0 && rect.size.width > 100.0 {
+                            // Ignore Wine's default 500x500 dummy desktop surface
+                            let is_wine_default_desktop = (rect.size.width - 500.0).abs() < 2.0
+                                && (rect.size.height - 500.0).abs() < 2.0;
+
+                            if !is_wine_default_desktop {
+                                if rect.size.width >= 640.0 && rect.size.height >= 480.0 {
+                                    has_game_window = true;
+                                    break;
+                                } else if rect.size.width >= 200.0 && rect.size.height >= 80.0 {
+                                    has_updater_window = true;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+
+            let has_result = !found_game_title.is_empty()
+                || has_game_window
+                || !found_updater_title.is_empty()
+                || has_updater_window;
+
+            if has_result {
+                let _: () = msg_send![window_list, release];
+                if !found_game_title.is_empty() {
+                    return found_game_title;
+                } else if has_game_window {
+                    return "osu!".to_string();
+                } else if !found_updater_title.is_empty() {
+                    return found_updater_title;
+                } else {
+                    return "osu! updater".to_string();
+                }
+            }
+        }
+
+        let _: () = msg_send![window_list, release];
+        String::new()
+    }
 }
 
 #[cfg(windows)]
@@ -513,3 +702,209 @@ pub fn encrypt_password(password: &str, entropy: &str) -> Result<String, String>
 
     Ok(base64_string)
 }
+
+/// Check if the patcher binary has already been patched for .NET 4.0 compatibility under Wine.
+pub fn is_compatible_patcher(data: &[u8]) -> bool {
+    let has_pbi_patch = data
+        .windows(6)
+        .any(|w| w == [0x1f, 0x18, 0x00, 0x00, 0x00, 0x00]);
+    let has_devserver_patch = data
+        .windows(7)
+        .any(|w| w == [0x26, 0x26, 0x2b, 0x0e, 0x00, 0x00, 0x00]);
+    has_pbi_patch && has_devserver_patch
+}
+
+/// Ensure `osu!.patcher.exe` is compatible with .NET Framework 4.0 runtime (used by Wine).
+///
+/// In .NET 4.0 (the runtime provided by Wine prefixes for osu! stable), generic `Marshal.SizeOf<T>()`
+/// does not exist (added in .NET 4.5.1), causing a `MissingMethodException` when `GetCommandLine()`
+/// queries `PROCESS_BASIC_INFORMATION`. Additionally:
+/// 1. `Console.ReadKey()` crashes with `InvalidOperationException` when stdio is redirected without a console.
+/// 2. `GetOsuPid()` checks for `" -devserver "` via PEB reading, which fails or is unreliable under Wine.
+/// 3. Costura embeds `ManagedInjector.Lib` which also calls generic `Marshal.SizeOf<Native.ModuleEntry32>()`
+///    and parses remote PE export tables through generic marshal APIs.
+/// This function patches the binary in-place so it runs reliably under Wine.
+pub fn ensure_patcher_compatibility(patcher_exe: &Path) -> Result<bool, String> {
+    if !patcher_exe.is_file() {
+        return Ok(false);
+    }
+
+    // Clean up loose ManagedInjector.Lib.dll if present, as CLR loads loose assemblies before Costura resources.
+    if let Some(parent) = patcher_exe.parent() {
+        let loose = parent.join("ManagedInjector.Lib.dll");
+        if loose.is_file() {
+            let _ = fs::remove_file(&loose);
+        }
+    }
+
+    let mut data = fs::read(patcher_exe)
+        .map_err(|e| format!("Failed to read {}: {e}", patcher_exe.display()))?;
+    let mut modified = false;
+
+    // Pattern 1 in GetCommandLine: ldloc.0, ldc.i4.0, ldloca.s 1, ldloc.1, call Marshal.SizeOf<PBI>
+    // [0x06, 0x16, 0x12, 0x01, 0x07, 0x28, 0x01, 0x00, 0x00, 0x2b]
+    let sizeof_pattern = [0x06, 0x16, 0x12, 0x01, 0x07, 0x28, 0x01, 0x00, 0x00, 0x2b];
+    if let Some(pos) = data
+        .windows(sizeof_pattern.len())
+        .position(|w| w == sizeof_pattern)
+    {
+        // Replace ldloc.1 (0x07) and call Marshal.SizeOf<PBI> (0x28, 0x01, 0x00, 0x00, 0x2b) with ldc.i4.s 24 (0x1f, 0x18) + 4 nops
+        let target = pos + 4;
+        data[target..target + 6].copy_from_slice(&[0x1f, 0x18, 0x00, 0x00, 0x00, 0x00]);
+        modified = true;
+    }
+
+    // Pattern 2 in Main catch handler: call Console.Write, call Console.ReadKey, pop, leave.s
+    // [0x28, 0x12, 0x00, 0x00, 0x0a, 0x28, 0x13, 0x00, 0x00, 0x0a, 0x26, 0xde]
+    let readkey_pattern = [
+        0x28, 0x12, 0x00, 0x00, 0x0a, 0x28, 0x13, 0x00, 0x00, 0x0a, 0x26, 0xde,
+    ];
+    if let Some(pos) = data
+        .windows(readkey_pattern.len())
+        .position(|w| w == readkey_pattern)
+    {
+        // Replace call Console.ReadKey() (5 bytes) + pop (1 byte) with 6 nops
+        let target = pos + 5;
+        data[target..target + 6].copy_from_slice(&[0x00, 0x00, 0x00, 0x00, 0x00, 0x00]);
+        modified = true;
+    }
+
+    // Pattern 3 in GetOsuPid: devserver check bypass
+    // [0x72, 0x95, 0x01, 0x00, 0x70, 0x6f, 0x15, 0x00, 0x00, 0x0a, 0x2d, 0x0b]
+    let dev_pattern = [
+        0x72, 0x95, 0x01, 0x00, 0x70, 0x6f, 0x15, 0x00, 0x00, 0x0a, 0x2d, 0x0b,
+    ];
+    if let Some(pos) = data
+        .windows(dev_pattern.len())
+        .position(|w| w == dev_pattern)
+    {
+        // Replace callvirt Contains + brtrue.s with pop, pop, br.s + 3 nops
+        let target = pos + 5;
+        data[target..target + 7].copy_from_slice(&[0x26, 0x26, 0x2b, 0x0e, 0x00, 0x00, 0x00]);
+        modified = true;
+    }
+
+    // Pattern 4: Costura embedded ManagedInjector.Lib resource at offset 0x1f00 (length 10020)
+    if data.len() >= 0x1f00 + 10020 && data.get(0x1efc..0x1f00) == Some(&[0x24, 0x27, 0x00, 0x00]) {
+        use flate2::read::DeflateDecoder;
+        use flate2::write::DeflateEncoder;
+        use flate2::Compression;
+        use std::io::{Read, Write};
+
+        let stream = &data[0x1f00..0x1f00 + 10020];
+        let mut decoder = DeflateDecoder::new(stream);
+        let mut decomp = Vec::new();
+        if decoder.read_to_end(&mut decomp).is_ok() {
+            let mut inner_modified = false;
+
+            // 4a. NativeHelper.GetModules: Marshal.SizeOf<ModuleEntry32>() -> ldc.i4 548
+            let module_pattern = [0x12, 0x04, 0x28, 0x08, 0x00, 0x00, 0x2b];
+            if let Some(pos) = decomp.windows(module_pattern.len()).position(|w| w == module_pattern) {
+                decomp[pos + 2..pos + 7].copy_from_slice(&[0x20, 0x24, 0x02, 0x00, 0x00]);
+                inner_modified = true;
+            }
+
+            // 4b. InjectableProcess.GetArchitecture: return NetFrameworkV4 (2) immediately
+            let arch_pattern = [
+                0x02, 0x7b, 0x0a, 0x00, 0x00, 0x04, 0x2c, 0x07, 0x02, 0x7b, 0x0a, 0x00, 0x00,
+                0x04, 0x2a,
+            ];
+            if let Some(pos) = decomp.windows(arch_pattern.len()).position(|w| w == arch_pattern) {
+                decomp[pos..pos + 2].copy_from_slice(&[0x18, 0x2a]); // ldc.i4.2, ret
+                decomp[pos + 2..pos + 15].fill(0x00); // 13 nops
+                inner_modified = true;
+            }
+
+            // 4c. FrameworkInjectorBase.GetCorBindToRuntimeExAddress: return 0x17b55 directly without remote PE parsing
+            let corbind_pattern = [
+                0x03, 0x06, 0x7b, 0x65, 0x00, 0x00, 0x0a, 0x72, 0x3d, 0x03, 0x00, 0x70, 0x04,
+                0x28, 0x08, 0x00, 0x00, 0x06, 0x0b,
+            ];
+            if let Some(pos) = decomp.windows(corbind_pattern.len()).position(|w| w == corbind_pattern) {
+                decomp[pos..pos + 6].copy_from_slice(&[0x20, 0x55, 0x7b, 0x01, 0x00, 0x0b]); // ldc.i4 0x17b55, stloc.1
+                decomp[pos + 6..pos + 19].fill(0x00); // 13 nops
+                inner_modified = true;
+            }
+
+            if inner_modified {
+                let mut encoder = DeflateEncoder::new(Vec::new(), Compression::best());
+                if encoder.write_all(&decomp).is_ok() {
+                    if let Ok(mut compressed) = encoder.finish() {
+                        if compressed.len() <= 10020 - 5 {
+                            let remaining = 10020 - compressed.len();
+                            let length = (remaining - 5) as u16;
+                            let nlen = !length;
+                            compressed.push(0x01); // BFINAL = 1, BTYPE = 00
+                            compressed.push((length & 0xff) as u8);
+                            compressed.push((length >> 8) as u8);
+                            compressed.push((nlen & 0xff) as u8);
+                            compressed.push((nlen >> 8) as u8);
+                            compressed.extend(std::iter::repeat(0x00).take(length as usize));
+                            if compressed.len() == 10020 {
+                                data[0x1f00..0x1f00 + 10020].copy_from_slice(&compressed);
+                                modified = true;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    if modified {
+        fs::write(patcher_exe, &data)
+            .map_err(|e| format!("Failed to write {}: {e}", patcher_exe.display()))?;
+        log::info!(
+            target: "patcher",
+            "Applied .NET 4.0 compatibility patch to {}",
+            patcher_exe.display()
+        );
+    }
+
+    Ok(modified)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_patcher_compatibility_patch() {
+        let mut fake_binary = vec![0x90; 0x3000];
+        let pbi = [0x06, 0x16, 0x12, 0x01, 0x07, 0x28, 0x01, 0x00, 0x00, 0x2b];
+        fake_binary[10..10 + pbi.len()].copy_from_slice(&pbi);
+        let readkey = [
+            0x28, 0x12, 0x00, 0x00, 0x0a, 0x28, 0x13, 0x00, 0x00, 0x0a, 0x26, 0xde,
+        ];
+        fake_binary[30..30 + readkey.len()].copy_from_slice(&readkey);
+        let devserver = [
+            0x72, 0x95, 0x01, 0x00, 0x70, 0x6f, 0x15, 0x00, 0x00, 0x0a, 0x2d, 0x0b,
+        ];
+        fake_binary[50..50 + devserver.len()].copy_from_slice(&devserver);
+
+        let temp_file = std::env::temp_dir().join("test_patcher_compat.exe");
+        std::fs::write(&temp_file, &fake_binary).unwrap();
+        let modified = ensure_patcher_compatibility(&temp_file).unwrap();
+        assert!(modified);
+        let patched_data = std::fs::read(&temp_file).unwrap();
+        assert!(is_compatible_patcher(&patched_data));
+        let _ = std::fs::remove_file(temp_file);
+    }
+
+    #[test]
+    #[cfg(target_os = "macos")]
+    fn test_get_window_title_macos() {
+        let _ = get_window_title_by_pid(Pid::from_u32(0));
+    }
+
+    #[test]
+    fn test_patcher_compatibility_real_patcher() {
+        let real_patcher = Path::new("/Applications/osu!(stable).app/Contents/Resources/drive_c/osu!/EZPPLauncher/patcher/osu!.patcher.exe");
+        if real_patcher.is_file() {
+            let res = ensure_patcher_compatibility(real_patcher);
+            assert!(res.is_ok());
+            let data = std::fs::read(real_patcher).unwrap();
+            assert!(is_compatible_patcher(&data));
+        }
+    }
+}

src/lib/components/theme/ThemeEditorWindow.svelte

@@ -2238,7 +2238,7 @@
         element.width = 340;
         element.height = 64;
       } else if (widgetKind === 'launch-button') {
-        element.width = 210;
+        element.width = 256;
         element.height = 48;
       }
     }
@@ -2290,9 +2290,9 @@
         ) as ThemeV2WidgetElement;
         launchBtn.widget = 'launch-button';
         launchBtn.name = 'Launch Button';
-        launchBtn.x = 740;
+        launchBtn.x = 720;
         launchBtn.y = 575;
-        launchBtn.width = 210;
+        launchBtn.width = 256;
         launchBtn.height = 48;
         newElements.push(launchBtn);
         existing = launchBtn;

src/lib/components/theme/ThemeElementInspector.svelte

@@ -2322,7 +2322,7 @@
                   element.width = 140;
                   element.height = 42;
                 } else if (val === 'primary') {
-                  element.width = 210;
+                  element.width = 256;
                   element.height = 48;
                 }
               } else if (element.widget === 'header') {

src/lib/components/theme/ThemeIcon.svelte

@@ -7,11 +7,13 @@
     set = DEFAULT_THEME_ICON_SET,
     size = '1em',
     class: className = '',
+    style = '',
   }: {
     name: ThemeIconName;
     set?: ThemeIconSet;
     size?: number | string;
     class?: string;
+    style?: string;
   } = $props();
 
   const icon = $derived(getThemeIconBody(name, set));
@@ -23,6 +25,7 @@
   width={size}
   height={size}
   class={className}
+  {style}
   aria-hidden="true"
   focusable="false"
 >

src/lib/components/theme/ThemeV2Elements.svelte

@@ -3,6 +3,7 @@
   import ThemeIcon from '$lib/components/theme/ThemeIcon.svelte';
   import ThemeLottieLayer from '$lib/components/theme/ThemeLottieLayer.svelte';
   import * as Avatar from '$lib/components/ui/avatar';
+  import DownloadButton from '$lib/components/ui/download-button/DownloadButton.svelte';
   import { currentUserInfo } from '$lib/data';
   import { launching as launchingStore } from '$lib/global';
   import { getThemeDataSampleValue, resolveThemeDataValue, themeGlobalData } from '$lib/themeData';
@@ -70,6 +71,7 @@
     launching = undefined,
     launchProgress = -1,
     launchText = 'Launch',
+    launchSubtext = undefined,
     launchDisabled = false,
     oninteraction,
     onselect,
@@ -103,6 +105,7 @@
     launching?: boolean;
     launchProgress?: number;
     launchText?: string;
+    launchSubtext?: string;
     launchDisabled?: boolean;
     oninteraction?: (id: string, type: 'click' | 'hover' | 'leave') => void;
     onselect?: (id: string | undefined, additive?: boolean) => void;
@@ -1613,14 +1616,25 @@
             }}
           >
             {#if isActionLaunch && isLaunching}
-              <ThemeIcon name="loader" set={iconSet} size="1.1em" class="animate-spin" />
+              {#if launchProgress >= 0}
+                <span class="text-[11px] font-bold">{Math.round(launchProgress)}%</span>
+              {:else}
+                <ThemeIcon name="loader" set={iconSet} size="1.1em" class="animate-spin" />
+              {/if}
             {:else if element.icon}
               <ThemeIcon name={element.icon} set={iconSet} size="1.1em" />
             {/if}
             {#if isActionLaunch && isLaunching}
-              <span class="truncate">
-                {launchProgress > 0 ? `${launchText} (${Math.round(launchProgress)}%)` : launchText}
-              </span>
+              <div class="flex flex-col items-center justify-center min-w-0">
+                <span class="truncate">
+                  {launchProgress >= 0
+                    ? `${launchText} (${Math.round(launchProgress)}%)`
+                    : launchText}
+                </span>
+                {#if launchSubtext}
+                  <span class="text-[10px] opacity-75 truncate max-w-[140px]">{launchSubtext}</span>
+                {/if}
+              </div>
             {:else if isMorphEnabled(element)}
               <TextMorph
                 text={String(interpolateThemeText(element.label, variables) ?? '')}
@@ -1852,7 +1866,7 @@
                 )}
                 {@const btnCircumference = 2 * Math.PI * btnRadius}
                 {@const strokeOffset =
-                  launchProgress === -1
+                  launchProgress < 0
                     ? btnCircumference * 0.7
                     : btnCircumference -
                       (Math.max(0, Math.min(100, launchProgress)) / 100) * btnCircumference}
@@ -1870,12 +1884,16 @@
                       onbuttonaction?.({ type: 'launch' });
                     }
                   }}
-                  title={isLaunching ? launchText : 'Launch osu!'}
+                  title={isLaunching
+                    ? launchSubtext
+                      ? `${launchText} - ${launchSubtext}`
+                      : launchText
+                    : 'Launch osu!'}
                 >
                   {#if isLaunching}
                     <!-- Rotating progress ring SVG -->
                     <svg
-                      class="absolute inset-0 h-full w-full {launchProgress === -1
+                      class="absolute inset-0 h-full w-full {launchProgress < 0
                         ? 'animate-spin'
                         : '-rotate-90'}"
                       viewBox="0 0 {element.width} {element.height}"
@@ -1902,7 +1920,7 @@
                       />
                     </svg>
 
-                    {#if launchProgress > 0}
+                    {#if launchProgress >= 0}
                       <span
                         class="relative z-10 text-[11px] font-black tracking-tight text-primary-foreground"
                       >
@@ -1910,9 +1928,9 @@
                       </span>
                     {:else}
                       <ThemeIcon
-                        name="loader"
+                        name="ellipsis"
                         set={iconSet}
-                        class="relative z-10 size-6 animate-spin text-primary-foreground"
+                        class="relative z-10 size-4 animate-pulse text-primary-foreground"
                       />
                     {/if}
                   {:else}
@@ -1934,61 +1952,53 @@
                       onbuttonaction?.({ type: 'launch' });
                     }
                   }}
-                  title={isLaunching ? launchText : 'Launch osu!'}
+                  title={isLaunching
+                    ? launchSubtext
+                      ? `${launchText} - ${launchSubtext}`
+                      : launchText
+                    : 'Launch osu!'}
                 >
                   {#if isLaunching}
-                    <ThemeIcon
-                      name="loader"
-                      set={iconSet}
-                      class="size-3.5 animate-spin fill-current"
-                    />
-                    <span>{launchProgress > 0 ? `${Math.round(launchProgress)}%` : launchText}</span
-                    >
+                    {#if launchProgress >= 0}
+                      <span class="text-[11px] font-black">{Math.round(launchProgress)}%</span>
+                    {:else}
+                      <ThemeIcon
+                        name="loader"
+                        set={iconSet}
+                        class="size-3.5 animate-spin fill-current"
+                      />
+                    {/if}
+                    <div class="flex flex-col items-center justify-center min-w-0">
+                      <span class="truncate">{launchText}</span>
+                      {#if launchSubtext}
+                        <span class="text-[9px] opacity-75 truncate max-w-[140px]"
+                          >{launchSubtext}</span
+                        >
+                      {/if}
+                    </div>
                   {:else}
                     <ThemeIcon name="launch" set={iconSet} class="size-3.5 fill-current" />
                     <span>Launch</span>
                   {/if}
                 </button>
               {:else}
-                <button
-                  type="button"
-                  class="relative flex h-full w-full items-center justify-center gap-2.5 rounded-full bg-primary px-5 font-bold text-primary-foreground shadow-lg shadow-primary/30 transition-all {isLaunching
-                    ? 'cursor-wait brightness-95'
-                    : launchDisabled
-                      ? 'cursor-not-allowed opacity-60'
-                      : 'cursor-pointer hover:brightness-110 active:scale-[0.98]'}"
-                  disabled={launchDisabled || isLaunching}
-                  onclick={(e) => {
-                    e.stopPropagation();
-                    if (!launchDisabled && !isLaunching) {
-                      onbuttonaction?.({ type: 'launch' });
-                    }
-                  }}
-                  title={isLaunching ? launchText : 'Launch osu!'}
-                >
-                  <div class="flex size-7 items-center justify-center rounded-full bg-black/20">
-                    {#if isLaunching}
-                      <ThemeIcon
-                        name="loader"
-                        set={iconSet}
-                        class="size-3.5 animate-spin text-primary-foreground"
-                      />
-                    {:else}
-                      <ThemeIcon
-                        name="launch"
-                        set={iconSet}
-                        class="ml-0.5 size-3.5 fill-current text-primary-foreground"
-                      />
-                    {/if}
-                  </div>
-                  <span class="text-sm font-bold tracking-wide">
-                    {isLaunching
-                      ? launchProgress > 0
-                        ? `${launchText} (${Math.round(launchProgress)}%)`
-                        : launchText
-                      : 'Launch'}
-                  </span>
-                </button>
+                <div class="flex h-full w-full items-center justify-center">
+                  <DownloadButton
+                    downloading={isLaunching}
+                    progress={launchProgress}
+                    text={isLaunching ? launchText : 'Launch'}
+                    subtext={launchSubtext}
+                    disabled={launchDisabled}
+                    {iconSet}
+                    class="h-full w-full justify-center"
+                    onClick={() => {
+                      if (interactive) return;
+                      if (!launchDisabled && !isLaunching) {
+                        onbuttonaction?.({ type: 'launch' });
+                      }
+                    }}
+                  />
+                </div>
               {/if}
             {:else if element.widget === 'player-card'}
               {@const playerStats =

src/lib/components/ui/download-button/DownloadButton.svelte

@@ -9,23 +9,60 @@
     subtext?: string;
     disabled?: boolean;
     iconSet?: ThemeIconSet;
+    class?: string;
     onClick?: () => void;
   } = $props();
 
-  const radius = 16;
+  let buttonHeight = $state(48);
+  let buttonWidth = $state(200);
+
+  const baseDim = $derived(
+    Math.min(buttonHeight > 0 ? buttonHeight : 48, buttonWidth > 0 ? buttonWidth : 200)
+  );
+
+  // Circle scales with button dimensions: ~70% of base dimension (no artificial upper clamp)
+  const circleSize = $derived(Math.max(16, Math.round(baseDim * 0.7)));
+  // Icon scales with circle size: ~44% of circle size
+  const iconSize = $derived(Math.max(10, Math.round(circleSize * 0.44)));
+  // Progress font size scales with circle size
+  const percentFontSize = $derived(Math.max(8, Math.round(circleSize * 0.32)));
+  // Optical horizontal nudge for the play triangle
+  const iconNudge = $derived(Math.max(1, Math.round(circleSize * 0.04)));
+
+  // Responsive font scaling for label and subtext
+  const availableTextWidth = $derived(
+    Math.max(50, (buttonWidth > 0 ? buttonWidth : 200) - baseDim)
+  );
+  const textChars = $derived(Math.max(6, (prop.text || 'Launch').length));
+  const maxFontFromWidth = $derived((availableTextWidth * 0.85) / textChars);
+  const maxFontFromHeight = $derived(baseDim * (prop.subtext ? 0.24 : 0.32));
+  const labelFontSize = $derived(
+    Math.max(10, Math.round(Math.min(maxFontFromHeight, maxFontFromWidth)))
+  );
+  const subtextFontSize = $derived(Math.max(8, Math.round(labelFontSize * 0.72)));
+
+  const radius = 16.5;
   const circumference = 2 * Math.PI * radius;
-  const strokeDashoffset = $derived(circumference - (prop.progress / 100) * circumference);
+  const strokeDashoffset = $derived(
+    circumference - (Math.max(0, Math.min(100, prop.progress)) / 100) * circumference
+  );
 </script>
 
 <button
-  class="group flex items-center h-12 rounded-full bg-primary disabled:bg-primary/70 shadow-lg shadow-primary/25 transition-all not-disabled:hover:shadow-primary/40 not-disabled:hover:brightness-110 not-disabled:active:scale-[0.98] cursor-pointer w-fit"
+  bind:clientHeight={buttonHeight}
+  bind:clientWidth={buttonWidth}
+  class="group flex items-center rounded-full bg-primary disabled:bg-primary/70 shadow-lg shadow-primary/25 transition-all not-disabled:hover:shadow-primary/40 not-disabled:hover:brightness-110 not-disabled:active:scale-[0.98] cursor-pointer {prop.class ??
+    'h-12 w-fit'}"
   disabled={prop.disabled}
   onclick={prop.onClick}
 >
-  <div class="relative size-12 shrink-0 flex items-center justify-center">
+  <div class="relative h-full aspect-square shrink-0 flex items-center justify-center">
     {#if prop.downloading}
       {#if prop.progress === -1}
-        <svg class="absolute inset-0 animate-spin" viewBox="0 0 48 48">
+        <svg
+          class="absolute inset-0 h-full w-full animate-spin pointer-events-none"
+          viewBox="0 0 48 48"
+        >
           <circle class="stroke-black/10" cx="24" cy="24" r={radius} fill="none" stroke-width="3" />
           <circle
             class="stroke-pink-950"
@@ -40,7 +77,10 @@
           />
         </svg>
       {:else}
-        <svg class="absolute inset-0 -rotate-90" viewBox="0 0 48 48">
+        <svg
+          class="absolute inset-0 h-full w-full -rotate-90 pointer-events-none"
+          viewBox="0 0 48 48"
+        >
           <circle
             cx="24"
             cy="24"
@@ -64,35 +104,56 @@
         </svg>
       {/if}
     {/if}
-    <div class="size-9 rounded-full bg-black/30 flex items-center justify-center relative z-10">
+    <div
+      class="aspect-square rounded-full bg-black/30 flex items-center justify-center relative z-10 max-h-[72%] max-w-[72%]"
+      style="width: {circleSize}px; height: {circleSize}px;"
+    >
       {#if prop.downloading}
         {#if prop.progress === -1}
           <ThemeIcon
             name="ellipsis"
             set={prop.iconSet ?? DEFAULT_THEME_ICON_SET}
-            class="size-4 text-primary-foreground fill-current animate-pulse"
+            size={iconSize}
+            class="text-primary-foreground fill-current animate-pulse max-w-[50%] max-h-[50%]"
           />
         {:else}
-          <span class="text-[10px] font-bold text-primary-foreground">
-            {prop.progress.toFixed()}
+          <span
+            class="font-bold text-primary-foreground leading-none"
+            style="font-size: {percentFontSize}px;"
+          >
+            {prop.progress.toFixed()}%
           </span>
         {/if}
       {:else}
         <ThemeIcon
           name="launch"
           set={prop.iconSet ?? DEFAULT_THEME_ICON_SET}
-          class="size-4 text-primary-foreground fill-current ml-0.5"
+          size={iconSize}
+          class="text-primary-foreground fill-current max-w-[50%] max-h-[50%]"
+          style="margin-left: {iconNudge}px;"
         />
       {/if}
     </div>
   </div>
 
-  <div class="pr-6 pl-1 text-center w-52">
-    <p class="text-sm font-bold text-primary-foreground leading-tight">
+  <div
+    class="text-center flex-1 min-w-0 max-w-full {prop.class ? '' : 'w-48'}"
+    style="padding-right: {Math.max(8, Math.round(baseDim * 0.25))}px; padding-left: {Math.max(
+      4,
+      Math.round(baseDim * 0.08)
+    )}px;"
+  >
+    <p
+      class="font-bold text-primary-foreground leading-tight truncate"
+      style="font-size: {labelFontSize}px;"
+    >
       {prop.text}
     </p>
     {#if prop.subtext}
-      <p class="text-[10px] text-primary-foreground/70 leading-tight">
+      <p
+        class="text-primary-foreground/70 leading-tight truncate"
+        style="font-size: {subtextFontSize}px;"
+      >
         {prop.subtext}
       </p>
     {/if}

src/lib/components/ui/osu-cursor/OsuCursor.svelte

@@ -11,21 +11,34 @@
   const SPEED_THRESHOLD = 9;
   const REQUIRED_CONSECUTIVE = 3;
 
-  let mouseX = $state(0);
-  let mouseY = $state(0);
+  let currentX = 0;
+  let currentY = 0;
+  let targetX = 0;
+  let targetY = 0;
+  let prevAppliedX = -1;
+  let prevAppliedY = -1;
+  let hasMoved = false;
+
   let lastMouseX = 0;
   let lastMouseY = 0;
-  let isMouseDown = $state(false);
-  let isHoveringInteractive = $state(false);
+  let isMouseDown = false;
+  let isHoveringInteractive = false;
   let dragStartX = 0;
   let dragStartY = 0;
-  let degrees = $state(0);
-  let applyRotation = $state(false);
+  let targetDegrees = 0;
+  let currentDegrees = 0;
+  let applyRotation = false;
 
   let lastVelocityTime = 0;
   let consecutiveHighSpeed = 0;
   let velocityAccumX = 0;
   let velocityAccumY = 0;
+  let rotateSpringAnim: ReturnType<typeof animate> | null = null;
+
+  let cursor: HTMLElement;
+  let cursorRotateWrapper: HTMLDivElement;
+  let cursorInner: HTMLImageElement;
+  let cursorAdditive: HTMLImageElement;
 
   function isInteractive(el: Element | null): boolean {
     while (el) {
@@ -44,15 +57,36 @@
     return false;
   }
 
+  function dampContinuously(current: number, target: number, halfLife: number, dt: number): number {
+    if (halfLife <= 0 || dt <= 0) return target;
+    return target + (current - target) * Math.pow(0.5, dt / halfLife);
+  }
+
   const handleMouseMove = (e: MouseEvent) => {
-    mouseX = e.clientX;
-    mouseY = e.clientY;
+    targetX = e.clientX;
+    targetY = e.clientY;
 
-    const deltaX = e.pageX - window.pageXOffset - dragStartX;
-    const deltaY = e.pageY - window.pageYOffset - dragStartY;
+    if (!hasMoved) {
+      currentX = targetX;
+      currentY = targetY;
+      prevAppliedX = targetX;
+      prevAppliedY = targetY;
+      lastMouseX = targetX;
+      lastMouseY = targetY;
+      hasMoved = true;
+      if (cursor) {
+        cursor.style.opacity = '1';
+        cursor.style.transform = `translate3d(${targetX}px, ${targetY}px, 0)`;
+      }
+      return;
+    }
 
-    velocityAccumX += mouseX - lastMouseX;
-    velocityAccumY += mouseY - lastMouseY;
+    if (cursor) {
+      cursor.style.opacity = '1';
+    }
+
+    velocityAccumX += targetX - lastMouseX;
+    velocityAccumY += targetY - lastMouseY;
 
     const now = performance.now();
     const dt = now - lastVelocityTime;
@@ -74,48 +108,33 @@
       lastVelocityTime = now;
     }
 
-    let newDegrees = (Math.atan2(-deltaX, deltaY) * 180) / Math.PI + 24.3;
-
-    let diff = (newDegrees - degrees) % 360;
-    if (diff < -180) diff += 360;
-    if (diff > 180) diff -= 360;
-
     if (isMouseDown && applyRotation) {
-      degrees += diff;
-    } else {
-      degrees = 0;
+      const deltaX = targetX - dragStartX;
+      const deltaY = targetY - dragStartY;
+      const newDegrees = (Math.atan2(-deltaX, deltaY) * 180) / Math.PI + 24.3;
+
+      let diff = (newDegrees - targetDegrees) % 360;
+      if (diff < -180) diff += 360;
+      if (diff > 180) diff -= 360;
+
+      targetDegrees += diff;
     }
 
-    const el = document.elementFromPoint(mouseX, mouseY);
-    isHoveringInteractive = isInteractive(el);
-
-    if (!isMouseDown) {
-      animate(cursorAdditive, {
-        opacity: isHoveringInteractive ? 1 : 0,
-        duration: 800,
-        ease: (t: number) => (t - 1) ** 5 + 1,
-      });
+    const el = document.elementFromPoint(targetX, targetY);
+    const hovering = isInteractive(el);
+    if (hovering !== isHoveringInteractive) {
+      isHoveringInteractive = hovering;
+      if (!isMouseDown) {
+        animate(cursorAdditive, {
+          opacity: isHoveringInteractive ? 1 : 0,
+          duration: 800,
+          ease: (t: number) => (t - 1) ** 5 + 1,
+        });
+      }
     }
 
-    animate(cursor, {
-      duration: smoothCursor ? $cursorSmoothness : 0,
-      translateX: mouseX,
-      translateY: mouseY,
-      ease: (t: number) => (t === 1 ? 1 : 1 - Math.pow(2, -10 * t)),
-    });
-
-    animate(cursor, {
-      duration: isMouseDown ? 200 : 1500,
-      rotate: degrees,
-      transformOrigin: '0px 0px 0',
-      ease: (t: number) =>
-        isMouseDown
-          ? (t - 1) ** 7 + 1
-          : Math.pow(2, -10 * t) * Math.sin((t - 0.075) * 20.94) + 1 - 0.0005 * t,
-    });
-
-    lastMouseX = mouseX;
-    lastMouseY = mouseY;
+    lastMouseX = targetX;
+    lastMouseY = targetY;
   };
 
   const handleMouseDown = (event: MouseEvent) => {
@@ -128,6 +147,12 @@
     lastVelocityTime = performance.now();
 
     isMouseDown = true;
+
+    if (rotateSpringAnim) {
+      rotateSpringAnim.pause();
+      rotateSpringAnim = null;
+    }
+
     animate(cursorInner, {
       scale: 0.9,
       duration: 800,
@@ -143,6 +168,7 @@
 
   const handleMouseUp = () => {
     isMouseDown = false;
+    const hadRotation = applyRotation || Math.abs(currentDegrees) > 0.1;
     applyRotation = false;
     consecutiveHighSpeed = 0;
     velocityAccumX = 0;
@@ -154,21 +180,86 @@
       ease: (t: number) => Math.pow(2, -10 * t) * Math.sin((t - 0.075) * 20.94) + 1 - 0.0005 * t,
     });
     animate(cursorAdditive, {
-      opacity: 0,
+      opacity: isHoveringInteractive ? 1 : 0,
       duration: 500,
       scale: 1,
       ease: (t: number) => (t - 1) ** 5 + 1,
     });
+
+    if (hadRotation && cursorRotateWrapper) {
+      rotateSpringAnim = animate(cursorRotateWrapper, {
+        rotate: 0,
+        duration: 1200,
+        ease: (t: number) => Math.pow(2, -10 * t) * Math.sin((t - 0.075) * 20.94) + 1 - 0.0005 * t,
+        onComplete: () => {
+          currentDegrees = 0;
+          targetDegrees = 0;
+          rotateSpringAnim = null;
+        },
+      });
+    }
   };
 
-  let cursor: HTMLElement;
-  let cursorInner: HTMLDivElement;
-  let cursorAdditive: HTMLImageElement;
+  const handleMouseLeave = () => {
+    if (cursor) cursor.style.opacity = '0';
+  };
+
+  const handleMouseEnter = () => {
+    if (cursor && hasMoved) cursor.style.opacity = '1';
+  };
 
   onMount(() => {
     document.documentElement.classList.add('hiddenCursor');
+    document.addEventListener('mouseleave', handleMouseLeave);
+    document.addEventListener('mouseenter', handleMouseEnter);
+
+    let animationFrameId: number;
+    let lastFrameTime = performance.now();
+
+    const tick = (now: number) => {
+      const dt = Math.min(Math.max(now - lastFrameTime, 0), 64);
+      lastFrameTime = now;
+
+      if (hasMoved && cursor) {
+        if (!smoothCursor) {
+          currentX = targetX;
+          currentY = targetY;
+        } else {
+          // Continuous exponential damping half-life in ms (mathematically invariant across refresh rates).
+          const halfLife = $cursorSmoothness > 50 ? 14 : Math.max(1, $cursorSmoothness || 14);
+          currentX = dampContinuously(currentX, targetX, halfLife, dt);
+          currentY = dampContinuously(currentY, targetY, halfLife, dt);
+        }
+
+        if (Math.abs(targetX - currentX) < 0.05) currentX = targetX;
+        if (Math.abs(targetY - currentY) < 0.05) currentY = targetY;
+
+        if (currentX !== prevAppliedX || currentY !== prevAppliedY) {
+          cursor.style.transform = `translate3d(${currentX}px, ${currentY}px, 0)`;
+          prevAppliedX = currentX;
+          prevAppliedY = currentY;
+        }
+
+        if (isMouseDown && applyRotation && cursorRotateWrapper) {
+          const rotFactor = 1 - Math.pow(0.5, dt / 25);
+          currentDegrees += (targetDegrees - currentDegrees) * rotFactor;
+          cursorRotateWrapper.style.transform = `rotate(${currentDegrees}deg)`;
+        }
+      }
+
+      animationFrameId = requestAnimationFrame(tick);
+    };
+
+    animationFrameId = requestAnimationFrame(tick);
+
     return () => {
       document.documentElement.classList.remove('hiddenCursor');
+      document.removeEventListener('mouseleave', handleMouseLeave);
+      document.removeEventListener('mouseenter', handleMouseEnter);
+      cancelAnimationFrame(animationFrameId);
+      if (rotateSpringAnim) {
+        rotateSpringAnim.pause();
+      }
     };
   });
 </script>
@@ -179,8 +270,8 @@
   onmouseup={handleMouseUp}
 />
 
-<div class="h-7 w-7 fixed pointer-events-none z-[9999]" bind:this={cursor}>
-  <div class="relative">
+<div class="h-7 w-7 fixed top-0 left-0 pointer-events-none z-[9999] opacity-0" bind:this={cursor}>
+  <div class="relative origin-top-left" bind:this={cursorRotateWrapper}>
     <img class="absolute top-0 left-0" src={cursor_default} bind:this={cursorInner} alt="cursor" />
     <img
       class="absolute top-0 left-0 opacity-0"

src/lib/themeMedia.ts

@@ -197,7 +197,7 @@ const armAutoplayRetry = (node: HTMLMediaElement) => {
   document.addEventListener('keydown', retry, true);
 };
 
-const playThemeMedia = (node: HTMLMediaElement) => {
+export const playThemeMedia = (node: HTMLMediaElement) => {
   void node
     .play()
     .then(() => {
@@ -498,10 +498,10 @@ export function themeMediaSuspension(node: HTMLElement) {
 }
 
 /**
- * Pause background videos while the launcher is hidden or unfocused, then
- * resume only the videos this helper paused itself. This keeps muted theme
- * videos from decoding in the background and prevents surprise audio when the
- * window comes back.
+ * Manage background video playback across document visibility changes.
+ * Videos continue playing when the launcher window loses focus. Muted background
+ * videos pause only when the document is hidden/minimized to save GPU decoding
+ * cycles without interrupting theme music or audio.
  */
 export function themeVideoLifecycle(node: HTMLVideoElement) {
   let pausedByLifecycle = false;
@@ -513,26 +513,29 @@ export function themeVideoLifecycle(node: HTMLVideoElement) {
   };
 
   const resume = () => {
-    if (!pausedByLifecycle) return;
+    if (!pausedByLifecycle && !node.autoplay && !node.loop) return;
     pausedByLifecycle = false;
     playThemeMedia(node);
   };
 
   const sync = () => {
-    if (document.visibilityState === 'visible' && document.hasFocus()) resume();
-    else pause();
+    if (!node.isConnected) {
+      document.removeEventListener('visibilitychange', sync);
+      return;
+    }
+    if (document.visibilityState === 'visible') {
+      resume();
+    } else if (node.muted || node.volume === 0) {
+      pause();
+    }
   };
 
   document.addEventListener('visibilitychange', sync);
-  window.addEventListener('focus', sync);
-  window.addEventListener('blur', sync);
   sync();
 
   return {
     destroy() {
       document.removeEventListener('visibilitychange', sync);
-      window.removeEventListener('focus', sync);
-      window.removeEventListener('blur', sync);
     },
   };
 }
@@ -564,8 +567,14 @@ export function themeMediaSource(node: HTMLMediaElement, source: string) {
  */
 export function smoothThemeMedia(node: HTMLElement) {
   const lastSource = new WeakMap<HTMLMediaElement, string>();
+  const videoLifecycles = new WeakMap<HTMLVideoElement, () => void>();
 
   const prepare = (media: HTMLMediaElement) => {
+    if (media instanceof HTMLVideoElement && !videoLifecycles.has(media)) {
+      const lifecycle = themeVideoLifecycle(media);
+      videoLifecycles.set(media, () => lifecycle.destroy());
+    }
+
     const source =
       media.getAttribute('src') ??
       media.querySelector<HTMLSourceElement>('source[src]')?.getAttribute('src') ??
@@ -595,6 +604,18 @@ export function smoothThemeMedia(node: HTMLElement) {
       for (const added of mutation.addedNodes) {
         if (added instanceof HTMLElement) scan(added);
       }
+
+      for (const removed of mutation.removedNodes) {
+        if (removed instanceof HTMLVideoElement) {
+          videoLifecycles.get(removed)?.();
+          videoLifecycles.delete(removed);
+        } else if (removed instanceof HTMLElement) {
+          removed.querySelectorAll?.<HTMLVideoElement>('video').forEach((video) => {
+            videoLifecycles.get(video)?.();
+            videoLifecycles.delete(video);
+          });
+        }
+      }
     }
   });
 

src/lib/themePreview.ts

@@ -1296,8 +1296,9 @@ const drawWidgetElement = async (context: PreviewContext, element: ThemeV2Widget
       fillRoundedRect(ctx, element.x, element.y, element.width, element.height, radius, accent);
       ctx.restore();
 
-      const circleR = Math.max(12, element.height * 0.32);
-      const circleX = element.x + circleR + 10;
+      const baseDim = Math.min(element.width, element.height);
+      const circleR = Math.round(baseDim * 0.35);
+      const circleX = element.x + baseDim / 2;
       ctx.beginPath();
       ctx.arc(circleX, centerY, circleR, 0, Math.PI * 2);
       ctx.fillStyle = 'rgba(0, 0, 0, 0.22)';
@@ -1307,7 +1308,12 @@ const drawWidgetElement = async (context: PreviewContext, element: ThemeV2Widget
 
       ctx.save();
       ctx.fillStyle = accentText;
-      ctx.font = canvasFont(context, bodyFont, Math.min(14, element.height * 0.33), 700);
+      const availableTextW = Math.max(50, element.width - baseDim);
+      const textFontSize = Math.max(
+        10,
+        Math.min(Math.round(baseDim * 0.32), Math.round((availableTextW * 0.85) / 6))
+      );
+      ctx.font = canvasFont(context, bodyFont, textFontSize, 700);
       ctx.textAlign = 'center';
       ctx.textBaseline = 'middle';
       const textCenterX = circleX + circleR + (element.x + element.width - (circleX + circleR)) / 2;

src/lib/themeV2.ts

@@ -1664,8 +1664,8 @@ export const createThemeV2Element = (type: ThemeV2Element['type'], index = 0): T
         ...base,
         type,
         widget: 'launch-button',
-        width: 220,
-        height: 60,
+        width: 256,
+        height: 48,
       },
       index
     )! as ThemeV2WidgetElement;

src/lib/userSettings.ts

@@ -2,7 +2,7 @@ import { writable } from 'svelte/store';
 
 export const customCursor = writable<boolean>(false);
 export const cursorSmoothening = writable<boolean>(false);
-export const cursorSmoothness = writable<number>(180);
+export const cursorSmoothness = writable<number>(14);
 export const reduceAnimations = writable<boolean>(false);
 export const patch = writable<boolean>(true);
 export const loggingEnabled = writable<boolean>(true);

src/lib/utils.ts

@@ -1,4 +1,5 @@
 import { custom_theme_audio_playing } from './global';
+import { playThemeMedia } from './themeMedia';
 import { invoke } from '@tauri-apps/api/core';
 import { type ClassValue, clsx } from 'clsx';
 import * as crypto from 'crypto-js';
@@ -149,50 +150,116 @@ export function setGlobalVolume(volume: number) {
   });
 }
 
+let activeFadeCancel: (() => void) | undefined = undefined;
+
 export function fadeGlobalVolume(
   volumeFrom: number,
   volumeTo: number,
   duration: number,
   onDone?: () => void
-) {
-  const mediaElements: NodeListOf<HTMLMediaElement> = document.querySelectorAll('audio, video');
-
-  const startTime = performance.now();
-
-  function animate() {
-    const currentTime = performance.now();
-    const elapsedTime = currentTime - startTime;
-    const progress = Math.min(elapsedTime / duration, 1);
-
-    const interpolatedVolume = volumeFrom + (volumeTo - volumeFrom) * progress;
-
-    mediaElements.forEach((element) => {
-      element.volume = interpolatedVolume;
-    });
-
-    if (progress < 1) {
-      requestAnimationFrame(animate);
-    } else {
-      if (onDone) onDone();
-    }
+): Promise<void> {
+  if (activeFadeCancel) {
+    activeFadeCancel();
+    activeFadeCancel = undefined;
   }
 
-  animate();
+  return new Promise((resolve) => {
+    const mediaElements: NodeListOf<HTMLMediaElement> = document.querySelectorAll('audio, video');
+    if (mediaElements.length === 0 || duration <= 0) {
+      if (mediaElements.length > 0) {
+        mediaElements.forEach((element) => {
+          element.volume = Math.min(1, Math.max(0, volumeTo));
+        });
+      }
+      if (onDone) onDone();
+      resolve();
+      return;
+    }
+
+    let cancelled = false;
+    let animationFrameId: number;
+
+    activeFadeCancel = () => {
+      cancelled = true;
+      cancelAnimationFrame(animationFrameId);
+    };
+
+    const startTime = performance.now();
+
+    function animate() {
+      if (cancelled) {
+        resolve();
+        return;
+      }
+
+      const currentTime = performance.now();
+      const elapsedTime = currentTime - startTime;
+      const progress = Math.min(elapsedTime / duration, 1);
+
+      const interpolatedVolume = Math.min(
+        1,
+        Math.max(0, volumeFrom + (volumeTo - volumeFrom) * progress)
+      );
+
+      mediaElements.forEach((element) => {
+        element.volume = interpolatedVolume;
+      });
+
+      if (progress < 1) {
+        animationFrameId = requestAnimationFrame(animate);
+      } else {
+        activeFadeCancel = undefined;
+        if (onDone) onDone();
+        resolve();
+      }
+    }
+
+    animationFrameId = requestAnimationFrame(animate);
+  });
 }
 
 export const pauseGlobalMedia = () => {
+  if (activeFadeCancel) {
+    activeFadeCancel();
+    activeFadeCancel = undefined;
+  }
   const mediaElements: NodeListOf<HTMLMediaElement> = document.querySelectorAll('audio, video');
-  mediaElements.forEach((element) => element.pause());
+  mediaElements.forEach((element) => {
+    try {
+      element.pause();
+    } catch {
+      // ignore
+    }
+  });
 };
 
 export const resumeGlobalMedia = () => {
   const mediaElements: NodeListOf<HTMLMediaElement> = document.querySelectorAll('audio, video');
-  mediaElements.forEach((element) => element.play());
+  mediaElements.forEach((element) => {
+    try {
+      if (element instanceof HTMLVideoElement && element.error) {
+        element.load();
+      }
+      playThemeMedia(element);
+    } catch (err) {
+      console.warn('Could not resume global media:', err);
+    }
+  });
 };
 
 export const setCurrentTimeGlobalMedia = (time: number) => {
   const mediaElements: NodeListOf<HTMLMediaElement> = document.querySelectorAll('audio, video');
-  mediaElements.forEach((element) => (element.currentTime = time));
+  mediaElements.forEach((element) => {
+    try {
+      if (Number.isFinite(element.duration) && element.duration > 0) {
+        element.currentTime = Math.min(Math.max(0, time), element.duration);
+      } else {
+        element.currentTime = Math.max(0, time);
+      }
+    } catch {
+      // ignore if media is not seekable
+    }
+  });
 };
 
 export function trackMediaContainer(node: HTMLElement) {

src/screens/Launch.svelte

@@ -832,6 +832,16 @@
     }
   };
 
+  const revealLauncherWindow = async () => {
+    try {
+      await invoke('reveal_window');
+    } catch {
+      await getCurrentWindow().show();
+      await getCurrentWindow().unminimize();
+      await getCurrentWindow().setFocus();
+    }
+  };
+
   const launch = async (skipUpdateCheck = false) => {
     if ($launching) return;
     launchInfo = 'Checking if osu! is already running...';
@@ -1084,10 +1094,9 @@
       await new Promise((res) => setTimeout(res, 1500));
       launchInfo = 'Launching osu!...';
 
-      fadeGlobalVolume($custom_theme_volume, 0, 2000, pauseGlobalMedia);
-
-      /* await replaceUIFiles(osuPath, false); */
-      await new Promise((res) => setTimeout(res, 1000));
+      await fadeGlobalVolume($custom_theme_volume, 0, 800);
+      pauseGlobalMedia();
+      await new Promise((res) => setTimeout(res, 200));
       await getCurrentWindow().hide();
 
       let presenceUpdater: number | undefined = undefined;
@@ -1199,11 +1208,12 @@
 
       if (otd_run) await stopOpenTabletDriver();
 
+      await revealLauncherWindow();
+      await new Promise((res) => setTimeout(res, 100));
+
       setCurrentTimeGlobalMedia(0);
       resumeGlobalMedia();
-      fadeGlobalVolume(0, $custom_theme_volume, 2000);
-
-      await getCurrentWindow().show();
+      fadeGlobalVolume(0, $custom_theme_volume, 1500);
       if (presenceUpdater) {
         window.clearInterval(presenceUpdater);
         try {
@@ -1245,7 +1255,9 @@
     } catch (err) {
       cleanup = false;
       const error = err as Error;
-      await getCurrentWindow().show();
+      await revealLauncherWindow();
+      resumeGlobalMedia();
+      fadeGlobalVolume(0, $custom_theme_volume, 1000);
       if (error.name === 'AbortError') {
         sileo.error({
           title: 'Hmmm...',
@@ -4036,7 +4048,14 @@
               : $osuInstallationPath === ''
                 ? 'No osu! path'
                 : 'Launch'}
-          launchDisabled={$osuInstallationPath === '' || $serverConnectionFails > 1 || $launching}
+          launchSubtext={$launching && !cleanup
+            ? launchInfo
+            : $osuInstallationPath === ''
+              ? 'osu! path is not set!'
+              : $serverConnectionFails > 1
+                ? 'No connection...'
+                : undefined}
+          launchDisabled={$osuInstallationPath === '' || $serverConnectionFails > 1}
           oninteraction={triggerThemeScriptElement}
           onbuttonaction={handleThemeButtonAction}
         />

src/screens/Loading.svelte

@@ -4,7 +4,6 @@
   import { git } from '$lib/api/git';
   import { config } from '$lib/config';
   import { currentUserInfo } from '$lib/data';
-  import { estimateFrameRate } from '$lib/displayUtils';
   import {
     beatmapSets,
     currentLoadingInfo,
@@ -30,12 +29,7 @@
   } from '$lib/osuUtil';
   import type { EZPPUser } from '$lib/types';
   import { currentUser } from '$lib/userAuthentication';
-  import {
-    cursorSmoothness,
-    osuInstallationPath,
-    preferredMode,
-    preferredType,
-  } from '$lib/userSettings';
+  import { osuInstallationPath, preferredMode, preferredType } from '$lib/userSettings';
   import Launch from './Launch.svelte';
   import SetupWizard from './SetupWizard.svelte';
   import { animate, utils } from 'animejs';
@@ -65,21 +59,7 @@
     }, 450);
   };
 
-  const calculateCursorSmoothness = async () => {
-    const refreshRate = await estimateFrameRate();
-    const hzMin = 60;
-    const hzMax = 500;
-    const durationMin = 350;
-    const durationMax = 600;
-    const clamped = Math.min(Math.max(refreshRate, hzMin), hzMax);
-    const duration =
-      durationMin + ((clamped - hzMin) / (hzMax - hzMin)) * (durationMax - durationMin);
-    cursorSmoothness.set(Math.round(duration));
-  };
-
   const prepare = async () => {
-    await calculateCursorSmoothness();
-
     const username = await config.value<string>('username').get('');
     const password = await config.value<string>('password').get('');