Examine source code of Chuck Norris doesnt dance

{
  "theme": {
    "images": {
      "theme_frame": "chucknorris.jpg"
    },
    "colors": {
      "frame": "#1232e8",
      "tab_background_text": "#e61050"
    }
  },
  "version": "2.0",
  "name": "Chuck Norris doesnt dance",
  "manifest_version": 2,
  "description": "No, he doesn't!"
}