Examine source code of Yellow Gold

{
  "name": "Yellow Gold",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "YellowH.jpg"
    },
    "colors": {
      "frame": "rgba(221, 224, 22, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(214, 224, 22, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(212, 175, 42, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{37961b00-150b-4e24-beb7-4a56d1b54407}"
    }
  }
}