Examine source code of combatarms-eu.com

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#363636",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "combatarms-eu.com",
  "manifest_version": 2,
  "description": "Use this with small icons on the toolbar, a bookmarks bar, the <file, edit, etc> bar, and the tabs. Otherwise it looks like crap."
}