Examine source code of Starred Agate

{
  "theme": {
    "images": {
      "theme_frame": "starred_agate.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#8c7f7f"
    }
  },
  "version": "2.0",
  "name": "Starred Agate",
  "manifest_version": 2,
  "description": "This is like something you would find at a gem show. It's a mineral -inspired bright orange and green persona. I've added some artistic touches to the mineral flecks. Great for geologists."
}