Examine source code of Dark Orange Accent

{
  "name": "Dark Orange",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "smaller.png"
    },
    "colors": {
      "frame": "rgba(61, 61, 61, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(87, 87, 87, 1)",
      "bookmark_text": "rgba(255, 162, 0, 1)",
      "toolbar_field": "rgba(61, 61, 61, 1)",
      "toolbar_field_text": "rgba(255, 162, 0, 1)",
      "tab_line": "rgba(255, 162, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3d2b2263-edd7-46cb-b8b8-f25493aa4b6f}"
    }
  }
}