Examine source code of Royal Golden

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Golden ",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-013-06591d4ad28ab7b9ee90f62f81d6b505.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(21, 21, 20)",
      "toolbar_text": "rgb(231, 199, 136)",
      "frame": "rgb(145, 244, 87)",
      "tab_background_text": "rgb(12, 5, 1)",
      "toolbar_field": "rgb(9, 13, 9)",
      "toolbar_field_text": "rgb(220, 236, 238)",
      "tab_line": "rgb(173, 227, 164)",
      "popup": "rgb(23, 23, 27)",
      "popup_text": "rgb(231, 199, 136)",
      "button_background_active": "rgb(7, 7, 7)",
      "button_background_hover": "rgb(4, 57, 4)",
      "frame_inactive": "rgb(226, 85, 85)",
      "icons_attention": "rgb(0, 245, 5)",
      "icons": "rgb(231, 199, 136)",
      "ntp_background": "rgb(112, 103, 86)",
      "ntp_text": "rgb(11, 11, 11)",
      "popup_border": "rgb(0, 0, 0)",
      "popup_highlight_text": "rgb(34, 196, 219)",
      "popup_highlight": "rgb(18, 19, 19)",
      "sidebar_border": "rgb(21, 217, 209)",
      "sidebar_highlight_text": "rgb(37, 146, 37)",
      "sidebar_highlight": "rgb(14, 192, 184)",
      "sidebar_text": "rgb(26, 184, 26)",
      "sidebar": "rgb(12, 189, 226)",
      "tab_background_separator": "rgb(66, 219, 20)",
      "tab_loading": "rgb(143, 19, 184)",
      "tab_selected": "rgb(14, 192, 184)",
      "tab_text": "rgb(0, 0, 0)",
      "toolbar_bottom_separator": "rgb(42, 106, 112)",
      "toolbar_field_border_focus": "rgb(12, 240, 240)",
      "toolbar_field_focus": "rgb(7, 7, 7)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e184d4ea-175c-4084-8278-e8895c39f9fd}"
    }
  }
}