Examine source code of Easter Clouds

{
  "theme": {
    "images": {
      "theme_frame": "P1010300copy.jpg"
    },
    "colors": {
      "frame": "#ffd7d1",
      "tab_background_text": "#00146b"
    }
  },
  "version": "2.0",
  "name": "Easter Clouds",
  "manifest_version": 2
}