Examine source code of Ursula-Cantera

{
  "theme": {
    "images": {
      "theme_frame": "Ursula.jpg"
    },
    "colors": {
      "frame": "#c0e8a9",
      "tab_background_text": "#e6f513"
    }
  },
  "version": "2.0",
  "name": "Ursula-Cantera",
  "manifest_version": 2,
  "description": "Mi Ursula y el Cantera :P"
}