Examine source code of My Webmarks

{
  "name": "My Webmarks",
  "version": "2.0",
  "description": "Web bookmark for your favorite websites",
  "permissions": [
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "icons": {
    "48": "webmarks_48.png",
    "96": "webmarks_96.png"
  },
  "browser_action": {
    "default_title": "Bookamark this page"
  },
  "manifest_version": 2
}