Examine source code of Grim Fandango

{
  "name": "Grim Fandango",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff",
      "toolbar": "rgba(255, 255, 255, 0)",
      "bookmark_text": "rgba(255, 255, 255, 0.82)",
      "toolbar_field": "rgba(255, 255, 255, 0.84)",
      "toolbar_field_text": "rgba(46, 46, 46, 1)",
      "tab_line": "rgba(94, 94, 94, 0.63)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e990529b-1506-4b42-af74-fdf8cefb273c}"
    }
  }
}