Dark mode shortcut

App/Browser View/BrowserViewController+Keyboard.swift

@@ -153,4 +153,8 @@ extension BrowserViewController: ShortcutResponder
     func showPreferences(_ sender: Any?) {
         showSettingsWindow()
     }
+    
+    func toggleDarkMode(_ sender: Any?) {
+        self.darkModeEnabled = !self.darkModeEnabled
+    }
 }

App/Browser View/BrowserViewController.swift

@@ -44,7 +44,7 @@ class BrowserViewController: UIViewController
     
     static let longPressWindowButtonToMakeNewTab: Bool = false
     
-    private var darkModeEnabled: Bool {
+    internal var darkModeEnabled: Bool {
         get { tab.bridge.darkModeEnabled }
         set {
             tab.bridge.darkModeEnabled = newValue