Examine source code of Weesoo Screen Sharing

{
  "name": "Weesoo Screen Sharing",
  "author": "Weesoo",
  "version": "1.1resigned1",
  "manifest_version": 2,
  "minimum_chrome_version": "34",
  "description": "Développée par Weesoo.",
  "homepage_url": "http://www.weesoo.com",
  "background": {
    "scripts": [
      "background-script.js"
    ],
    "persistent": false
  },
  "externally_connectable": {
    "matches": [
      "https://*.weesoo.com/*",
      "*://localhost/*",
      "*://127.0.0.1/*"
    ]
  },
  "icons": {
    "16": "logo16.png",
    "48": "logo48.png",
    "128": "logo128.png"
  },
  "permissions": [
    "desktopCapture"
  ],
  "applications": {
    "gecko": {
      "id": "contact@weesoo.com"
    }
  },
  "web_accessible_resources": [
    "logo48.png"
  ]
}