Examine source code of kitty lie

{
  "theme": {
    "images": {
      "theme_frame": "3000-200-91491.jpg"
    },
    "colors": {
      "frame": "#11ed9c",
      "tab_background_text": "#1ad1ed"
    }
  },
  "version": "2.0",
  "name": "kitty lie",
  "manifest_version": 2,
  "description": "little kitty looking there"
}