Examine source code of PostureCorrector

{
  "manifest_version": 2,
  "name": "PostureCorrector",
  "version": "1.1.3",
  "description": "Uses real-time webcam footage to accurately detect bad posture and warn user.",
  "permissions": [
    "storage",
    "notifications"
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "contact.poscorrector@gmail.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "assets/icons/icon16.png",
    "32": "assets/icons/icon32.png",
    "48": "assets/icons/icon48.png",
    "128": "assets/icons/icon128.png"
  },
  "browser_action": {
    "default_popup": "html/popup.html",
    "default_icon": {
      "16": "assets/icons/icon16.png",
      "32": "assets/icons/icon32.png",
      "48": "assets/icons/icon48.png",
      "128": "assets/icons/icon128.png"
    }
  },
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "sandbox": {
    "pages": [
      "html/sandbox.html"
    ],
    "content_security_policy": "sandbox allow-scripts; script-src 'self' 'unsafe-eval' wasm-unsafe-eval';"
  },
  "web_accessible_resources": [
    "assets/mediapipe/*",
    "assets/opencv/*",
    "html/sandbox.html"
  ]
}