Examine source code of Funny Universe

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#210dfc",
      "tab_background_text": "#ffe0ff"
    }
  },
  "version": "2.0",
  "name": "Funny Universe",
  "manifest_version": 2,
  "description": "self-painted computer-image"
}