Examine source code of Miner Defender Theme beta

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Miner Defender Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(255, 206, 128)",
      "toolbar_text": "rgb(162, 13, 13)",
      "frame": "rgb(255, 255, 255)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(67, 67, 67, 0.71)",
      "toolbar_field_text": "rgb(193, 195, 255)",
      "tab_line": "rgb(248, 112, 140)",
      "popup": "rgb(87, 87, 87)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(248, 112, 140)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{29d2ebe7-2da3-4c17-bcd4-0bb397f464b9}"
    }
  }
}