Examine source code of mizzi01

{
  "theme": {
    "images": {
      "theme_frame": "mizzi.jpg"
    },
    "colors": {
      "frame": "#454545",
      "tab_background_text": "#454545"
    }
  },
  "version": "2.0",
  "name": "mizzi01",
  "manifest_version": 2,
  "description": "..."
}