Examine source code of NetWidZ

{
  "theme": {
    "images": {
      "theme_frame": "netwidzH.jpg"
    },
    "colors": {
      "frame": "#51db11",
      "tab_background_text": "#6e4bef"
    }
  },
  "version": "2.0",
  "name": "NetWidZ",
  "manifest_version": 2,
  "description": "this theme is from NetWidZ.com site"
}