$titlebar-center-width: 50%; $titlebar-side-width: (100% - $titlebar-center-width) / 2; $titlebar-background: #eee; $titlebar-color: #000; $titlebar-border: 1px solid #ccc; $titlebar-padding: $global-padding; $titlebar-item-classes: ( center: 'center', left: 'left', right: 'right', title: 'title', );