Examine source code of Vista 7

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Vista 7",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(28, 199, 177)",
      "toolbar_text": "rgb(160, 160, 160)",
      "frame": "rgb(46, 160, 71)",
      "tab_background_text": "rgb(120, 169, 21)",
      "toolbar_field": "rgb(156, 160, 46)",
      "toolbar_field_text": "rgb(25, 150, 87)",
      "tab_line": "rgb(160, 46, 46)",
      "popup": "rgb(27, 145, 153)",
      "popup_text": "rgb(50, 46, 160)",
      "tab_loading": "rgb(160, 46, 46)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ff0d2db5-00d8-4321-81e7-2bb109716ceb}"
    }
  }
}