Register Windows notification icon via metadata after NewWindow.

Fyne toasts read App.Icon without SetIcon, preserving the PE multi-size
window and taskbar icon while giving failure notifications app artwork.

Co-authored-by: Cursor <cursoragent@cursor.com>

assets/assets.go

@@ -44,6 +44,8 @@ import (
 //   - Tray: SetSystemTrayIcon(IconSmallICO()). The notification area is ICO-native
 //     and renders at 16-24px; a single-frame 16x16 .ico pins the hand-tuned glyph
 //     (a multi-size .ico made the tray pick and downscale a larger frame).
+//   - Desktop toasts: AppMetadata.Icon (set after NewWindow in run.go) feeds
+//     SendNotification without calling SetIcon, which would override GLFW_ICON.
 //
 // Linux / other non-Windows (no PE icon resource exists):
 //   - Window titlebar: a.SetIcon(IconSmall()) in run.go feeds the resource to

docs/CHANGELOG.md

@@ -4,6 +4,12 @@ All notable GoSentry changes are recorded in this file.
 
 ## 1.0.1 - 2026-08-04
 
+**Windows failure notifications can show the app icon (experimental).**
+
+- **`ui.run`** — after `NewWindow`, register `AppMetadata.Icon` on Windows so
+  Fyne toasts pick up artwork without calling `SetIcon`, which would override
+  the PE multi-size window/taskbar icon.
+
 **Sample jobs include a disabled failure test for desktop notifications.**
 
 - **`storage.defaultJobs`** — new disabled example *Failure notification test*

src/ui/run.go

@@ -59,6 +59,7 @@ func Run(startInTray bool) {
 	}
 
 	w := a.NewWindow("GoSentry " + app.Version)
+	setWindowsNotificationIcon()
 	prefs := a.Preferences()
 	winW := float32(prefs.FloatWithFallback("window.width", defaultWindowWidth))
 	winH := float32(prefs.FloatWithFallback("window.height", defaultWindowHeight))
@@ -94,3 +95,20 @@ func Run(startInTray bool) {
 	recordStartup(time.Since(started), true)
 	a.Run()
 }
+
+// setWindowsNotificationIcon supplies App.Icon for Fyne desktop notifications
+// without touching the window or taskbar icon. On Windows those come from the PE
+// gosentry.ico resource, so run.go must not call SetIcon. Fyne's NewWindow ends
+// with SetIcon(nil), which adopts App.Icon when it is already set — metadata
+// must therefore be registered only after the window is created. The tray icon
+// is set separately in tray.go via SetSystemTrayIcon.
+func setWindowsNotificationIcon() {
+	if runtime.GOOS != "windows" {
+		return
+	}
+	fyneapp.SetMetadata(fyne.AppMetadata{
+		ID:   appID,
+		Name: "GoSentry",
+		Icon: assets.Icon(),
+	})
+}