Examine source code of Umbreon-Animated

{
  "name": "Umbreon-Animated",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "umbreon.gif"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(255, 200, 0, 1)",
      "toolbar": "rgba(0, 0, 0, 1)",
      "bookmark_text": "rgba(255, 200, 0, 1)",
      "toolbar_field": "rgba(145, 145, 145, 1)",
      "toolbar_field_text": "rgba(255, 200, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{854ca7a2-6937-40fb-993c-007003bff85f}"
    }
  }
}