Examine source code of Gold Gecko

{
  "theme": {
    "images": {
      "theme_frame": "phelsuma-head.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Gold Gecko",
  "manifest_version": 2,
  "description": "I have observed these tiny jewels for a while in a terrarium and took some pictures. I hope you'll enjoy their beauty too ;-)\nRoBen"
}