silverstripe/sapphire — pull request #725 by Martimiz (2012-08-19 12:30:13+00:00)
Title: ENHANCEMENT: add optional custom menu icon to CMS main menu

Add optional custom menu icons to the CMS main menu for every class extending LeftAndMain (ModelAdmin). Works by setting optional static $menu_icon = '/path/to/image' and providing custom styling for added icons. Works for the menu as well as for the icon in the right-side (GridField) pane header.