Examine source code of drogon thing

{
  "theme": {
    "images": {
      "theme_frame": "idkfire.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#1544b0"
    }
  },
  "version": "2.0",
  "name": "drogon thing",
  "manifest_version": 2,
  "description": "a dragon thing i made up. i now think it kind of looks like Mario but with a T-Rex in a shell not a turtle. also wings and fire."
}