Examine source code of Fox Worlds 2

{
  "theme": {
    "images": {
      "theme_frame": "FoxButn_Poster_Hdr.jpg"
    },
    "colors": {
      "frame": "#f7e3a8",
      "tab_background_text": "#171716"
    }
  },
  "version": "2.0",
  "name": "Fox Worlds 2",
  "manifest_version": 2,
  "description": "A variant of my original Fox Worlds, but with poster style effects."
}