Examine source code of snow dog

{
  "theme": {
    "images": {
      "theme_frame": "header_edited-1.png"
    },
    "colors": {
      "frame": "#4db4e3",
      "tab_background_text": "#141c4d"
    }
  },
  "version": "2.0",
  "name": "snow dog",
  "manifest_version": 2,
  "description": "a dog in the snow, snow dog, no?"
}