Examine source code of Duluth at night

{
  "theme": {
    "images": {
      "theme_frame": "persona-5.jpg"
    },
    "colors": {
      "frame": "#030000",
      "tab_background_text": "#f7f0ea"
    }
  },
  "version": "2.0",
  "name": "Duluth at night",
  "manifest_version": 2,
  "description": "Shot of Duluth at night from about 20 miles up the North Shore"
}