Examine source code of Superfriends

{
  "theme": {
    "images": {
      "theme_frame": "SUPERFRIENDS.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#fbff05"
    }
  },
  "version": "2.0",
  "name": "Superfriends",
  "manifest_version": 2,
  "description": "\"The Original\" Superfriends. Best viewed in 1280 resolution"
}