Examine source code of red and gold

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "red and gold",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(160, 0, 0)",
      "toolbar_text": "rgb(213, 149, 72)",
      "frame": "rgb(65, 14, 14)",
      "tab_background_text": "rgb(180, 115, 24)",
      "toolbar_field": "rgb(84, 0, 0)",
      "toolbar_field_text": "rgb(218, 155, 67)",
      "tab_line": "rgb(218, 139, 67)",
      "popup": "rgb(84, 7, 7)",
      "popup_text": "rgb(255, 150, 1)",
      "button_background_active": "rgb(185, 0, 0)",
      "button_background_hover": "rgb(198, 0, 0)",
      "frame_inactive": "rgb(102, 38, 38)",
      "ntp_background": "rgb(212, 2, 2)",
      "ntp_text": "rgb(251, 251, 251)",
      "toolbar_field_border_focus": "rgb(168, 0, 0)",
      "tab_loading": "rgb(218, 139, 67)"
    }
  }
}