Examine source code of PlaystationWorld

{
  "theme": {
    "images": {
      "theme_frame": "header2.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "PlaystationWorld",
  "manifest_version": 2,
  "description": "This is PlaystationWorld's first dab into making a Persona for firefox. It relates to our website.\n\nI made it after having feedback to do so and I hope to get a few better ones up in the future!"
}