Examine source code of zero user

{
  "theme": {
    "images": {
      "theme_frame": "zerouser.PNG"
    },
    "colors": {
      "frame": "#0d7310",
      "tab_background_text": "#0d7310"
    }
  },
  "version": "2.0",
  "name": "zero user",
  "manifest_version": 2
}