Examine source code of Very Chrome

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Very Chrome",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(255, 255, 255)",
      "toolbar_text": "rgb(34, 34, 34)",
      "frame": "rgb(211, 227, 253)",
      "tab_background_text": "rgb(34, 34, 34)",
      "toolbar_field": "rgb(236, 239, 247)",
      "toolbar_field_text": "rgb(34, 34, 34)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(34, 34, 34)",
      "frame_inactive": "rgb(221, 227, 233)",
      "sidebar_text": "rgb(221, 227, 233)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{36046494-a8c0-4f98-ac83-0570ece7b547}"
    }
  }
}