Examine source code of California Coast

{
  "theme": {
    "images": {
      "theme_frame": "1a4.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "California Coast",
  "manifest_version": 2,
  "description": "A perfect blue sky studded with clouds over a blue ocean that rolls in as soft white bubbles on the tan sand at the bottom of the screen. Based on a photo of a beach in my native California."
}