Examine source code of Mosaic art

{
  "theme": {
    "images": {
      "theme_frame": "persona.jpg"
    },
    "colors": {
      "frame": "#eb1212",
      "tab_background_text": "#f0f4f5"
    }
  },
  "version": "2.0",
  "name": "Mosaic art",
  "manifest_version": 2,
  "description": "Mosaic artwork"
}