Examine source code of iolixus

{
  "theme": {
    "images": {
      "theme_frame": "firefoxnavydots.jpg"
    },
    "colors": {
      "frame": "#171263",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "iolixus",
  "manifest_version": 2,
  "description": "A solid navy blue background sprinkled with very tiny dots. Think of the dots as miniature stars against a dark blue sky."
}