Examine source code of Rising Gods Second

{
  "theme": {
    "images": {
      "theme_frame": "firefoxpersona_rg002.jpg"
    },
    "colors": {
      "frame": "#011b2b",
      "tab_background_text": "#0d1c26"
    }
  },
  "version": "2.0",
  "name": "Rising Gods Second",
  "manifest_version": 2,
  "description": "Characters by Blizzard Entertainment\nLogo by Sma"
}