Add custom-inset title-bar

src/atom-environment.coffee

@@ -698,6 +698,9 @@ class AtomEnvironment extends Model
         if process.platform is 'darwin' and @config.get('core.titleBar') is 'custom'
           @workspace.addHeaderPanel({item: new TitleBar({@workspace, @themes, @applicationDelegate})})
           @document.body.classList.add('custom-title-bar')
+        if process.platform is 'darwin' and @config.get('core.titleBar') is 'custom-inset'
+          @workspace.addHeaderPanel({item: new TitleBar({@workspace, @themes, @applicationDelegate})})
+          @document.body.classList.add('custom-inset-title-bar')
         if process.platform is 'darwin' and @config.get('core.titleBar') is 'hidden'
           @document.body.classList.add('hidden-title-bar')
 

src/config-schema.js

@@ -360,8 +360,8 @@ if (process.platform === 'darwin') {
   configSchema.core.properties.titleBar = {
     type: 'string',
     default: 'native',
-    enum: ['native', 'custom', 'hidden'],
-    description: 'Use a custom, theme-aware title bar or hide the title bar altogether.<br>Note: Switching to a custom or hidden title bar will compromise some functionality.<br>This setting will require a relaunch of Atom to take effect.'
+    enum: ['native', 'custom', 'custom-inset', 'hidden'],
+    description: 'A `custom` title bar adapts to theme colors. Choosing `custom-inset` adds a bit more padding. The title bar can also be completely `hidden`.<br>Note: Switching to a custom or hidden title bar will compromise some functionality.<br>This setting will require a relaunch of Atom to take effect.'
   }
 }
 

src/main-process/atom-window.coffee

@@ -46,9 +46,12 @@ class AtomWindow
     if @shouldAddCustomTitleBar()
       options.titleBarStyle = 'hidden'
 
-    if @shouldHideTitleBar()
+    if @shouldAddCustomInsetTitleBar()
       options.titleBarStyle = 'hidden-inset'
 
+    if @shouldHideTitleBar()
+      options.frame = false
+
     @browserWindow = new BrowserWindow options
     @atomApplication.addWindow(this)
 
@@ -234,6 +237,11 @@ class AtomWindow
     process.platform is 'darwin' and
     @atomApplication.config.get('core.titleBar') is 'custom'
 
+  shouldAddCustomInsetTitleBar: ->
+    not @isSpec and
+    process.platform is 'darwin' and
+    @atomApplication.config.get('core.titleBar') is 'custom-inset'
+
   shouldHideTitleBar: ->
     not @isSpec and
     process.platform is 'darwin' and