Examine source code of ManageEngine Password Manager Pro

{
  "manifest_version": 2,
  "default_locale": "en",
  "name": "__MSG_Password_Manager_Pro__",
  "version": "5.0.1.0",
  "description": "__MSG_PMP_Description__",
  "browser_action": {
    "default_icon": "images/pmp_48x48.png",
    "default_title": "__MSG_Password_Manager_Pro__",
    "default_popup": "html/popup.html"
  },
  "background": {
    "scripts": [
      "js/background_script.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/cs/initialize_cs.out.js"
      ],
      "css": [
        "css/autofill.css"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "permissions": [
    "tabs",
    "cookies",
    "webRequest",
    "webNavigation",
    "management",
    "clipboardRead",
    "clipboardWrite",
    "storage",
    "https://*/*",
    "http://*/*",
    "privacy",
    "alarms"
  ],
  "content_security_policy": "default-src 'self';script-src 'self'; object-src 'self'; child-src 'self'; style-src 'self';img-src * data: blob: filesystem:;connect-src * data: blob: filesystem:;",
  "icons": {
    "16": "images/pmp_16x16.png",
    "48": "images/pmp_48x48.png",
    "128": "images/pmp_128x128.png"
  },
  "web_accessible_resources": [
    "images/pmp_16x16.png",
    "css/autofill.css",
    "images/loading.gif",
    "html/autofill.html*",
    "html/save_password.html"
  ],
  "applications": {
    "gecko": {
      "id": "jid1-Sr1xtqTx9MX0Aw@jetpack"
    }
  }
}