Examine source code of Halo Covenant Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Halo Covenant Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-019-7ce748211c61f9059493d4c4378e8a74.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(86, 56, 141)",
      "toolbar_text": "rgb(129, 206, 235)",
      "frame": "rgb(42, 28, 103)",
      "tab_background_text": "rgb(108, 89, 177)",
      "toolbar_field": "rgb(43, 81, 157)",
      "toolbar_field_text": "rgb(178, 227, 244)",
      "tab_line": "rgb(129, 206, 235)",
      "popup": "rgb(43, 81, 157)",
      "popup_text": "rgb(178, 227, 244)",
      "tab_loading": "rgb(129, 206, 235)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{35e3bb52-cf0f-436a-b7b4-72421a72955c}"
    }
  }
}