Examine source code of Pumpkin Seeds

{
  "theme": {
    "images": {
      "theme_frame": "PumpkinSeedsHeader.jpg"
    },
    "colors": {
      "frame": "#bdbdbd",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Pumpkin Seeds",
  "manifest_version": 2,
  "description": "A pumpkin, quartered with a very sharp knife. The seeds are visible and also cutted."
}