Examine source code of Windows Classic

{
  "manifest_version": 2,
  "version": "3.0",
  "name": "Windows Classic",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(204, 204, 204)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(59, 110, 165)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgba(117, 147, 191, 0)",
      "popup": "rgb(204, 204, 204)",
      "popup_text": "rgb(0, 0, 0)",
      "button_background_active": "rgb(162, 162, 162)",
      "button_background_hover": "rgb(178, 178, 178)",
      "frame_inactive": "rgb(131, 131, 131)",
      "icons_attention": "rgb(0, 97, 224)",
      "icons": "rgb(0, 0, 0)",
      "ntp_background": "rgb(59, 110, 165)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgb(128, 128, 128)",
      "popup_highlight_text": "rgb(0, 0, 0)",
      "popup_highlight": "rgb(255, 255, 255)",
      "sidebar_border": "rgb(128, 128, 128)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(8, 35, 104)",
      "sidebar_text": "rgb(0, 0, 0)",
      "sidebar": "rgb(204, 204, 204)",
      "tab_loading": "rgb(0, 0, 128)",
      "tab_selected": "rgb(117, 147, 191)",
      "tab_text": "rgba(255, 255, 255, 0.85)",
      "toolbar_bottom_separator": "rgb(128, 128, 128)",
      "toolbar_field_border_focus": "rgb(105, 105, 105)",
      "toolbar_field_border": "rgb(128, 128, 128)",
      "toolbar_field_focus": "rgb(204, 204, 204)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(0, 0, 128)",
      "toolbar_field_text_focus": "rgb(0, 0, 0)",
      "toolbar_field_separator": "rgba(10, 0, 225, 0)",
      "toolbar_top_separator": "rgb(128, 128, 128)",
      "toolbar_vertical_separator": "rgb(128, 128, 128)",
      "tab_background_separator": "rgba(10, 0, 225, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f00b28c4-72a4-4329-a3f0-0381f7e9eaf3}"
    }
  }
}