Examine source code of Watchmen-4-men

{
  "theme": {
    "images": {
      "theme_frame": "header_3000x200.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#fafafa"
    }
  },
  "version": "2.0",
  "name": "Watchmen-4-men",
  "manifest_version": 2,
  "description": "One of my favorite film, Watchmen.\nFrom right-to-left; Nite Owl, Rorschach, Dr.Manhattan, The comedian."
}