Examine source code of My jar collection

{
  "theme": {
    "images": {
      "theme_frame": "jarsjars.jpg"
    },
    "colors": {
      "frame": "#fff5f5",
      "tab_background_text": "#fff5f5"
    }
  },
  "version": "2.0",
  "name": "My jar collection",
  "manifest_version": 2,
  "description": "Not so much the jars but what I keep in them like sand or beads etc"
}