Examine source code of el otro yo

{
  "theme": {
    "images": {
      "theme_frame": "cabeza.jpg"
    },
    "colors": {
      "frame": "#ed13de",
      "tab_background_text": "#09c3ed"
    }
  },
  "version": "2.0",
  "name": "el otro yo",
  "manifest_version": 2,
  "description": "eoy para tu mozilla!"
}