Examine source code of Batman Asylum

{
  "theme": {
    "images": {
      "theme_frame": "batman_Header-Final.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Batman Asylum",
  "manifest_version": 2,
  "description": "Just a simple but cool Batman Theme (made with Photoshop 1440x900 Rez). Actually I did this quite awhile ago but just now getting around to adding it. It's also my first try at theme making, so I hope you like it, and believe me there's more to come.I'm also open to suggestions and willing to do theme requests, so if you have a rockin' idea let me know and I'll give it my best shot.\n\n-Lethal"
}