Examine source code of Tangerine dark fox

{
  "name": "Tangerine dark fox",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "firefox_zFSa2y57pv.png"
    },
    "colors": {
      "frame": "rgba(255, 162, 0, 1)",
      "tab_background_text": "rgba(255, 170, 0, 1)",
      "toolbar": "rgba(0, 0, 0, 0.3)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.73)",
      "toolbar_field_text": "rgba(255, 255, 255, 0.76)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a937c5cc-5947-4041-87ec-f703bf287f18}"
    }
  }
}