Examine source code of Silver Rockers

{
  "theme": {
    "images": {
      "theme_frame": "siteheaderbkgrnd.jpg"
    },
    "colors": {
      "frame": "#fabd05",
      "tab_background_text": "#5d7ef5"
    }
  },
  "version": "2.0",
  "name": "Silver Rockers",
  "manifest_version": 2,
  "description": "For old school rockers everywhere!"
}