Examine source code of Noxious Villa

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Noxious Villa",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(220, 220, 220, 0.53)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(108, 107, 107)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(85, 90, 107, 0.32)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(143, 40, 65)",
      "popup": "rgb(213, 213, 213)",
      "popup_text": "rgb(66, 88, 139)",
      "tab_loading": "rgb(143, 40, 65)"
    }
  }
}