Examine source code of Bizare Black-Green Circle

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#3b3b3b",
      "tab_background_text": "#00fc5c"
    }
  },
  "version": "2.0",
  "name": "Bizare Black-Green Circle",
  "manifest_version": 2,
  "description": "Its a simple eye pleasing abstract circle persona. Mixed made of Green Black And Grey color. I hope it will suit your style. Thanks :)"
}