Examine source code of uPrism Screen Capture

{
  "applications": {
    "gecko": {
      "id": "webdev1@uprism.com",
      "strict_min_version": "47.0"
    }
  },
  "name": "uPrism Screen Sharing",
  "version": "1.0.1resigned1",
  "manifest_version": 2,
  "description": "Sharing Screen for uPrism",
  "homepage_url": "https://devcloud.uprism.com:30443",
  "content_scripts": [
    {
      "matches": [
        "https://devcloud.uprism.com/*"
      ],
      "js": [
        "content-script.js"
      ],
      "all_frames": true,
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "background-script.js"
    ]
  },
  "icons": {
    "48": "icon.png"
  },
  "permissions": [
    "<all_urls>"
  ],
  "web_accessible_resources": [
    "icon.png"
  ]
}