Examine source code of MoreShares

{
  "manifest_version": 2,
  "name": "MoreShares",
  "version": "0.0.5",
  "description": "Share on various social media sites",
  "permissions": [
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "MoreShares: share on various social media sites",
    "default_popup": "popup.html"
  },
  "icons": {
    "32": "images/share-32.png",
    "64": "images/share-64.png",
    "128": "images/share-128.png",
    "256": "images/share-256.png"
  },
  "options_ui": {
    "page": "option.html",
    "open_in_tab": true
  }
}