Examine source code of Dragon Map

{
  "name": "Dragon Map",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Dragon Map.png"
    },
    "colors": {
      "frame": "rgba(203, 179, 145, 1)",
      "tab_background_text": "rgba(82, 55, 24, 1)",
      "toolbar": "rgba(204, 182, 147, 0.52)",
      "bookmark_text": "rgba(82, 55, 24, 1)",
      "toolbar_field": "rgba(204, 182, 147, 0.69)",
      "toolbar_field_text": "rgba(82, 55, 24, 1)",
      "tab_line": "rgba(82, 55, 24, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{42834267-c203-4ae9-b578-091ac770ccd0}"
    }
  }
}