Give Control Center items distinct icons

Every Control Center module shares one app icon, so the tray was a wall
of identical tiles. Map each item's title to its own SF Symbol so Wi-Fi,
Battery, Now Playing and friends are distinguishable at a glance.

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Assisted-by: Crush:deepseek-v4.1-flash

AGENTS.md

@@ -42,6 +42,10 @@ executable SwiftPM package, no external dependencies (all Apple frameworks).
   including ones not in the bar, which are parked off-screen at `y≈982`.
   `enumerate()` drops items whose AX position `y > 60` and de-duplicates by
   title per app, otherwise the tray fills with identical "Control Center" tiles.
+- Icons: every Control Center module shares the same app icon, so
+  `symbolName(for:)` maps titles (Wi‑Fi, Battery, Now Playing, …) to distinct SF
+  Symbols, falling back to the owning app's icon. Note the non-breaking hyphen
+  in "Wi‑Fi" (`\u{2011}`) is normalised before matching.
 - Reading another app's UI is the only TCC permission needed; there is no Screen
   Recording or Apple Events usage.
 
@@ -119,7 +123,8 @@ no control over this, so the app creates its own `NSStatusItem` and:
 ## Hiding other menu bar items
 
 `MenuBarHider` creates a zero-width spacer `NSStatusItem` at launch and grows its
-length to `hiddenLength` (10_000) to push the icons on its left off-screen. Its
+length to `hiddenLength` (10_000) to push the icons on its left off-screen. It is
+**on by default** (`hideMenuBarItems` defaults to true, then persisted). Its
 preferred position controls where the hidden/kept boundary lands:
 
 - Seed **250** (default) puts the boundary just left of Wi-Fi, so every
@@ -129,6 +134,9 @@ preferred position controls where the hidden/kept boundary lands:
 - Verified with `--diag-hide` across positions 100–400. Below ~200 Wi-Fi gets
   hidden too; above ~300 app icons (Now Playing, TextInput) leak back.
 - `debug.spacerPos` (Double) overrides the seed for tuning without rebuilding.
+- **Order matters**: `AppDelegate` must call `setupStatusItem()` *before*
+  `MenuBarHider.shared.prepare()`. If the hider contracts the bar first, the
+  hamburger is created into the collapsed space and lands off-screen.
 - **Wi-Fi/Spotlight/Clock/Battery/Control Center cannot be hidden**: macOS pins
   them to the far right and a third-party item can never be inserted to their
   right, so the spacer has nothing to push them with. This is a macOS

README.md

@@ -28,8 +28,9 @@ still works.
 macOS has no public API to move another app's status item. The **Hide items from
 the menu bar** toggle uses the spacer technique: a zero-width status item is
 created at launch whose length is expanded to push the other icons off-screen so
-they only live in this panel. It is off by default and always undone on quit; if
-the app dies, macOS removes the spacer automatically.
+they only live in this panel. It is **on by default** (the choice is
+remembered), always undone on quit, and if the app dies macOS removes the spacer
+automatically.
 
 What it can and cannot hide:
 

Sources/SimpleTopBar/App.swift

@@ -43,8 +43,10 @@ final class AppDelegate: NSObject, NSApplicationDelegate {
 
         AppListModel.shared.start()
         MenuBarItemManager.shared.start()
-        MenuBarHider.shared.prepare()
+        // Create the hamburger before the hider so it is placed in the visible
+        // part of the bar; the hider then contracts the space around it.
         setupStatusItem()
+        MenuBarHider.shared.prepare()
 
         if CommandLine.arguments.contains("--diag") {
             DispatchQueue.main.asyncAfter(deadline: .now() + 2.5) {

Sources/SimpleTopBar/MenuBarItems.swift

@@ -8,7 +8,7 @@ struct MenuBarItem: Identifiable, Equatable {
     let pid: pid_t
     let appName: String
     let title: String
-    let appIcon: NSImage
+    let icon: NSImage
     let element: AXUIElement
 
     static func == (lhs: MenuBarItem, rhs: MenuBarItem) -> Bool {
@@ -90,7 +90,7 @@ final class MenuBarItemManager: ObservableObject {
                     pid: pid,
                     appName: app.localizedName ?? app.bundleIdentifier ?? "Unknown",
                     title: title,
-                    appIcon: app.icon ?? NSImage(named: NSImage.applicationIconName) ?? NSImage(),
+                    icon: Self.icon(forTitle: title, app: app),
                     element: child
                 ))
             }
@@ -113,6 +113,52 @@ final class MenuBarItemManager: ObservableObject {
         return AXUIElementPerformAction(item.element, kAXShowMenuAction as CFString) == .success
     }
 
+    // MARK: - Icons
+
+    /// Picks an icon for a menu bar item. Control Center owns many unrelated
+    /// modules, and they all share the Control Center app icon, so map their
+    /// titles to distinct SF Symbols for readability. Anything unknown falls
+    /// back to the owning app's icon.
+    nonisolated static func icon(forTitle title: String, app: NSRunningApplication) -> NSImage {
+        if let symbol = symbolName(for: title),
+           let image = NSImage(systemSymbolName: symbol, accessibilityDescription: title) {
+            image.isTemplate = true
+            return image
+        }
+        return app.icon ?? NSImage(named: NSImage.applicationIconName) ?? NSImage()
+    }
+
+    /// Keyword table mapping a menu bar item's title/description to an SF Symbol.
+    nonisolated static func symbolName(for title: String) -> String? {
+        // Control Center uses a non-breaking hyphen in "Wi‑Fi".
+        let text = title.lowercased()
+            .replacingOccurrences(of: "\u{2010}", with: "-")
+            .replacingOccurrences(of: "\u{2011}", with: "-")
+        let table: [(matches: [String], symbol: String)] = [
+            (["wi-fi", "wifi"], "wifi"),
+            (["battery"], "battery.100"),
+            (["clock", "time"], "clock"),
+            (["now playing"], "play.circle"),
+            (["focus"], "moon.fill"),
+            (["sound", "volume", "audio"], "speaker.wave.2"),
+            (["airdrop"], "dot.radiowaves.left.and.right"),
+            (["bluetooth"], "dot.radiowaves.left.and.right"),
+            (["mirroring"], "rectangle.on.rectangle"),
+            (["search", "spotlight"], "magnifyingglass"),
+            (["siri"], "waveform"),
+            (["keyboard"], "keyboard"),
+            (["stage manager"], "rectangle.3.group"),
+            (["brightness", "display"], "sun.max"),
+            (["control center"], "switch.2"),
+            (["notification"], "bell"),
+            (["vpn"], "lock.shield"),
+        ]
+        for entry in table where entry.matches.contains(where: { text.contains($0) }) {
+            return entry.symbol
+        }
+        return nil
+    }
+
     // MARK: - AX helpers
 
     nonisolated static func extrasMenuBar(of app: AXUIElement) -> AXUIElement? {
@@ -151,10 +197,10 @@ final class MenuBarItemManager: ObservableObject {
 }
 
 /// Best-effort menu bar item hiding. A zero-width spacer status item is created
-/// at launch; expanding its length to a huge value pushes the items to its left
+/// at launch; expanding its length to a huge value pushes the other apps' icons
 /// off the visible menu bar, so they can only be reached through SimpleTopBar's
-/// panel. Reliable only when SimpleTopBar starts at login (its spacer then sits
-/// to the right of later-launched apps' items). Always restored on quit.
+/// panel. On by default; the choice is persisted. Always restored on quit, and
+/// a crash cleans up automatically because status items die with the process.
 @MainActor
 final class MenuBarHider: ObservableObject {
     static let shared = MenuBarHider()
@@ -162,17 +208,24 @@ final class MenuBarHider: ObservableObject {
     /// Width that pushes the neighbouring items off the visible menu bar.
     static let hiddenLength: CGFloat = 10_000
 
+    private static let defaultsKey = "hideMenuBarItems"
+
     @Published private(set) var isHiding = false
-    @Published var enabled = false {
+    @Published var enabled: Bool {
         didSet {
             guard enabled != oldValue else { return }
+            UserDefaults.standard.set(enabled, forKey: Self.defaultsKey)
             apply(enabled)
         }
     }
 
     private var spacer: NSStatusItem?
 
-    private init() {}
+    private init() {
+        // Hide by default: the menu bar then shows only SimpleTopBar's hamburger
+        // plus the Apple items macOS will not let us move.
+        enabled = UserDefaults.standard.object(forKey: Self.defaultsKey) as? Bool ?? true
+    }
 
     /// Create the spacer early (at launch) so it lands as far right as possible.
     func prepare() {
@@ -191,19 +244,19 @@ final class MenuBarHider: ObservableObject {
         item.autosaveName = name
         item.button?.isHidden = true
         spacer = item
+        apply(enabled)
     }
 
     private func apply(_ hiding: Bool) {
-        prepare()
         spacer?.length = hiding ? Self.hiddenLength : 0
         isHiding = hiding
     }
 
-    /// Put the menu bar back the way we found it. Called on quit.
+    /// Put the menu bar back the way we found it. Called on quit. Leaves the
+    /// user's preference intact.
     func restore() {
         spacer?.length = 0
         isHiding = false
-        enabled = false
     }
 }
 

Sources/SimpleTopBar/SelfTest.swift

@@ -80,12 +80,20 @@ func runSelfTest() {
     check(MenuBarItemManager.children(of: systemWide) == nil, "no children on a non-app element")
 
     let element = AXUIElementCreateSystemWide()
-    let first = MenuBarItem(id: "1-0", pid: 1, appName: "A", title: "T", appIcon: NSImage(), element: element)
-    let same = MenuBarItem(id: "1-0", pid: 1, appName: "A", title: "T", appIcon: NSImage(), element: element)
-    let different = MenuBarItem(id: "1-1", pid: 1, appName: "A", title: "T", appIcon: NSImage(), element: element)
+    let first = MenuBarItem(id: "1-0", pid: 1, appName: "A", title: "T", icon: NSImage(), element: element)
+    let same = MenuBarItem(id: "1-0", pid: 1, appName: "A", title: "T", icon: NSImage(), element: element)
+    let different = MenuBarItem(id: "1-1", pid: 1, appName: "A", title: "T", icon: NSImage(), element: element)
     check(first == same, "menu bar items compare by id and title")
     check(first != different, "different ids are not equal")
 
+    // Control Center items map to distinct symbols instead of one shared icon.
+    check(MenuBarItemManager.symbolName(for: "Wi\u{2011}Fi, connected, 3 bars") == "wifi", "wi-fi maps to wifi symbol")
+    check(MenuBarItemManager.symbolName(for: "Battery") == "battery.100", "battery maps to battery symbol")
+    check(MenuBarItemManager.symbolName(for: "Now Playing") == "play.circle", "now playing maps to play symbol")
+    check(MenuBarItemManager.symbolName(for: "Control Center") == "switch.2", "control center maps to switch symbol")
+    check(MenuBarItemManager.symbolName(for: "Search") == "magnifyingglass", "search maps to magnifier symbol")
+    check(MenuBarItemManager.symbolName(for: "cmux") == nil, "unknown titles fall back to the app icon")
+
     let authorized = AXIsProcessTrusted()
     print("accessibility authorized=\(authorized)")
     if authorized {

Sources/SimpleTopBar/TopBarView.swift

@@ -245,7 +245,7 @@ private struct MenuBarTile: View {
         Button {
             menuBar.press(item)
         } label: {
-            Image(nsImage: item.appIcon)
+            Image(nsImage: item.icon)
                 .resizable()
                 .frame(width: 20, height: 20)
                 .padding(6)