Examine source code of Hello Fall

{
  "theme": {
    "images": {
      "theme_frame": "Untitled-1.png"
    },
    "colors": {
      "frame": "#7029ff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Hello Fall",
  "manifest_version": 2,
  "description": "Oranges and purples and black. Its a sunset from my back porch that matches all the leaves on the ground."
}