Examine source code of Fairies' Song

{
  "name": "Fairies' Song",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Fairies' Song.png"
    },
    "colors": {
      "frame": "rgba(25, 83, 42, 1)",
      "tab_background_text": "rgba(175, 180, 250, 1)",
      "toolbar": "rgba(218, 250, 228, 0.52)",
      "bookmark_text": "rgba(14, 92, 37, 1)",
      "toolbar_field": "rgba(25, 84, 44, 0)",
      "toolbar_field_text": "rgba(25, 83, 42, 1)",
      "tab_line": "rgba(240, 218, 24, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{729a04cd-de48-4ccd-b2ed-5c60da185dcf}"
    }
  }
}