Examine source code of Slowhand

{
  "theme": {
    "images": {
      "theme_frame": "slowhand.jpg"
    },
    "colors": {
      "frame": "#d58bed",
      "tab_background_text": "#82e6ed"
    }
  },
  "version": "2.0",
  "name": "Slowhand",
  "manifest_version": 2,
  "description": "The best guitar player in the world"
}