Monochrome menu bar icon, click-to-open, real .app bundle

.github/workflows/release.yml

@@ -53,7 +53,31 @@ jobs:
             CGO_ENABLED=1 GOARCH=$arch go build -o "$dir/bpm-tray" ./cmd/bpm-tray
             tar -C "$dir" -czf "dist-tray/bpm-tray_${{ github.ref_name }}_darwin_${arch}.tar.gz" bpm-tray
           done
+      - name: Build AppIcon.icns from the embedded logo
+        run: |
+          mkdir -p /tmp/icon.iconset
+          for size in 16 32 128 256 512; do
+            sips -z $size $size internal/webui/assets/logo.png --out /tmp/icon.iconset/icon_${size}x${size}.png >/dev/null
+            double=$((size*2))
+            sips -z $double $double internal/webui/assets/logo.png --out /tmp/icon.iconset/icon_${size}x${size}@2x.png >/dev/null
+          done
+          iconutil -c icns /tmp/icon.iconset -o /tmp/AppIcon.icns
+      - name: Assemble BpmTray.app for both architectures
+        run: |
+          version="${{ github.ref_name }}"
+          version="${version#v}"
+          for arch in arm64 amd64; do
+            app="dist-tray/darwin_${arch}/BpmTray.app"
+            mkdir -p "$app/Contents/MacOS" "$app/Contents/Resources"
+            sed "s/VERSION_PLACEHOLDER/${version}/" packaging/macos/Info.plist.template > "$app/Contents/Info.plist"
+            cp "dist-tray/darwin_${arch}/bpm-tray" "$app/Contents/MacOS/bpm-tray"
+            cp /tmp/AppIcon.icns "$app/Contents/Resources/AppIcon.icns"
+            plutil -lint "$app/Contents/Info.plist"
+            ditto -c -k --sequesterRsrc --keepParent "$app" "dist-tray/BpmTray_${{ github.ref_name }}_darwin_${arch}.zip"
+          done
       - name: Attach to the release
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: gh release upload ${{ github.ref_name }} dist-tray/*.tar.gz --clobber
+        run: |
+          gh release upload ${{ github.ref_name }} dist-tray/*.tar.gz --clobber
+          gh release upload ${{ github.ref_name }} dist-tray/*.zip --clobber

cmd/bpm-tray/main.go

@@ -30,9 +30,20 @@ func main() {
 }
 
 func onReady() {
-	systray.SetIcon(webui.LogoPNG)
+	// Template icon: a flat black silhouette with real alpha, so macOS tints
+	// it correctly for the light/dark menu bar - the full-colour app icon
+	// (via plain SetIcon) rendered as an illegible colour blob at actual
+	// menu bar size. regularIconBytes (LogoPNG) is only a fallback for
+	// platforms without template-icon support; bpm-tray only ships for
+	// macOS, so it's never actually shown.
+	systray.SetTemplateIcon(webui.LogoTemplatePNG, webui.LogoPNG)
 	systray.SetTooltip("Bambu Profile Manager")
 
+	// A single click opens the web UI directly - no menu to navigate first.
+	// Right-click (the systray default when SetOnTapped is set) still shows
+	// the menu below, so Quit stays reachable.
+	systray.SetOnTapped(openBrowser)
+
 	mOpen := systray.AddMenuItem("Open bpm", "Open the web UI in your browser")
 	mStatus := systray.AddMenuItem("Starting…", "")
 	mStatus.Disable()
@@ -51,7 +62,7 @@ func onReady() {
 		for {
 			select {
 			case <-mOpen.ClickedCh:
-				exec.Command("open", "http://localhost"+addr).Start()
+				openBrowser()
 			case <-mQuit.ClickedCh:
 				systray.Quit()
 				return
@@ -60,6 +71,10 @@ func onReady() {
 	}()
 }
 
+func openBrowser() {
+	exec.Command("open", "http://localhost"+addr).Start()
+}
+
 // startServer wires up the same server cmd/bpm's `serve` builds, but with
 // zero flags: db and backups live under ~/Library/Application Support/bpm,
 // and Bambu Studio's real directories are auto-discovered rather than

internal/webui/assets.go

@@ -14,6 +14,16 @@ import (
 //go:embed assets/logo.png
 var LogoPNG []byte
 
+// LogoTemplatePNG is a monochrome (black-on-transparent) silhouette derived
+// from LogoPNG, cropped and downsized for use as a macOS menu bar "template"
+// image — those get tinted/inverted automatically for the light/dark menu
+// bar, but only if they're a flat black shape with real alpha, not a full
+// colour icon (real gap found live: SetIcon with the full-colour app icon
+// rendered as a tiny, illegible blob at menu bar size).
+//
+//go:embed assets/logo-template.png
+var LogoTemplatePNG []byte
+
 // handleLogo serves LogoPNG over HTTP. Aggressively cacheable: the file
 // only changes on a new build, and go:embed gives every build a fresh byte
 // slice anyway.

packaging/macos/Info.plist.template

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleName</key>
+	<string>Bpm Tray</string>
+	<key>CFBundleDisplayName</key>
+	<string>Bpm Tray</string>
+	<key>CFBundleIdentifier</key>
+	<string>uk.syscode-labs.bpm-tray</string>
+	<key>CFBundleExecutable</key>
+	<string>bpm-tray</string>
+	<key>CFBundleIconFile</key>
+	<string>AppIcon</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>VERSION_PLACEHOLDER</string>
+	<key>CFBundleVersion</key>
+	<string>VERSION_PLACEHOLDER</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>11.0</string>
+	<key>LSUIElement</key>
+	<true/>
+	<key>NSHighResolutionCapable</key>
+	<true/>
+</dict>
+</plist>