Examine source code of Mozilla Add Ons

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#afc9e0",
      "tab_background_text": "#0a0909"
    }
  },
  "version": "2.0",
  "name": "Mozilla Add Ons",
  "manifest_version": 2,
  "description": "Designed and created by Creative Expressions Art. Copyright Aug. 2013."
}