Examine source code of christmas town

{
  "theme": {
    "images": {
      "theme_frame": "Untitled-TrueColor-01persona.jpg"
    },
    "colors": {
      "frame": "#d65a5a",
      "tab_background_text": "#732e2e"
    }
  },
  "version": "2.0",
  "name": "christmas town",
  "manifest_version": 2,
  "description": "small train moving thru town"
}