Examine source code of The Mickey Mouse Theme

{
  "manifest_version": 2,
  "name": "The Mickey Mouse Theme",
  "version": "1.0",
  "description": "A personalized Firefox theme.",
  "author": "Tazmeen Kazmi",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#006fea",
      "tab_background_text": "#fef7e6",
      "tab_text": "#FFFFFF",
      "toolbar": "#006fea",
      "toolbar_text": "#FFFFFF",
      "bookmark_text": "#a2d4f3",
      "button_background_hover": "#8bbdf5",
      "button_background_active": "#8bbdf5",
      "icons": "#212121",
      "icons_attention": "#a2d4f3",
      "popup": "#FFF8E1",
      "popup_text": "#212121",
      "popup_highlight": "#8bbdf5",
      "popup_highlight_text": "#5D4037",
      "ntp_background": "#006fea",
      "ntp_text": "#212121",
      "sidebar": "#FFF8E1",
      "sidebar_text": "#212121",
      "sidebar_highlight": "#FFEB3B",
      "sidebar_highlight_text": "#5D4037",
      "tab_line": "#8bbdf5",
      "tab_loading": "#3f6b3a"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6570f957-3ca0-4d7b-80ef-d977bd6e3c72}"
    }
  }
}