Examine source code of Shroomz

{
  "theme": {
    "images": {
      "theme_frame": "2.jpg"
    },
    "colors": {
      "frame": "#ffeb0a",
      "tab_background_text": "#fbff00"
    }
  },
  "version": "2.0",
  "name": "Shroomz",
  "manifest_version": 2,
  "description": "My custom shrooms. They appear a lot in my artwork.  I might upload some more and my art can be found on deviantart."
}