Examine source code of Password Manager

{
  "manifest_version": 3,
  "name": "SandPass — Zero-Knowledge Password Manager",
  "description": "Secure password manager with zero-knowledge encryption. Your passwords never leave your device.",
  "version": "0.2.1",
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "48": "icon-48.png",
    "96": "icon-96.png",
    "128": "icon-128.png",
    "256": "icon-256.png",
    "512": "icon-512.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "alarms",
    "contextMenus",
    "clipboardWrite",
    "scripting"
  ],
  "commands": {
    "lock-vault": {
      "suggested_key": {
        "default": "Alt+Shift+L"
      },
      "description": "Lock vault"
    },
    "autofill-current": {
      "suggested_key": {
        "default": "Alt+Shift+U"
      },
      "description": "Autofill current page"
    },
    "generate-password": {
      "suggested_key": {
        "default": "Alt+Shift+G"
      },
      "description": "Generate password to clipboard"
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'none'; base-uri 'none';"
  },
  "sidebar_action": {
    "default_panel": "sidepanel.html",
    "default_title": "SandPass"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "sandpass@sandpass.io",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "SandPass",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "run_at": "document_idle",
      "js": [
        "content-scripts/content.js"
      ]
    }
  ]
}