Examine source code of Windows Aero Dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Windows Aero Dark",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(8, 11, 33)",
      "tab_background_text": "rgb(215, 226, 239)",
      "toolbar_field": "rgb(64, 64, 64)",
      "toolbar_field_text": "rgb(222, 222, 222)",
      "tab_line": "rgb(78, 78, 78)",
      "popup": "rgb(48, 48, 48)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_background_separator": "rgb(255, 255, 255)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_field_border_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(174, 174, 174)",
      "tab_loading": "rgb(78, 78, 78)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b0eb16a1-19f5-4c88-9d0f-7b8894924129}"
    }
  }
}