Fix: Escape key exits full screen on macOS desktop

docs/API-Reference/editor/Editor.md

@@ -1703,3 +1703,18 @@ Constant: Bulls-eye mode, strictly center the text always.
 
 ## CENTERING\_MARGIN
 **Kind**: global constant  
+<a name="getMarkOptionTabstopOutline"></a>
+
+## getMarkOptionTabstopOutline()
+Mark option for a subdued outline box, used to show every remaining stop of an active
+snippet/tab-stop session (see editor/TabstopManager.js) so the user can see at a glance how
+many fields are left and where, even for the ones they haven't tabbed to yet.
+
+**Kind**: global function  
+<a name="getMarkOptionTabstopOutlineActive"></a>
+
+## getMarkOptionTabstopOutlineActive()
+Mark option for the bold/active variant of the above, layered on top of it for whichever stop
+is currently selected in an active snippet/tab-stop session.
+
+**Kind**: global function  

src/command/KeyBindingManager.js

@@ -1355,6 +1355,9 @@ define(function (require, exports, module) {
         if (!handled && _handleKey(shortcut)) {
             event.stopPropagation();
             event.preventDefault();
+        } else if (!handled && event.key === "Escape" && Phoenix.isNativeApp && brackets.platform === "mac") {
+            // unhandled Esc reaching the native macOS window exits full screen
+            event.preventDefault();
         }
     }