Examine source code of Nextcloud Passwords

{
  "name": "__MSG_appName__",
  "description": "__MSG_appDescription__",
  "default_locale": "en",
  "version": "1.1.0",
  "version_name": "1.1.0 ",
  "manifest_version": 2,
  "icons": {
    "48": "icons/icon_48.png",
    "128": "icons/icon_128.png"
  },
  "browser_action": {
    "default_title": "__MSG_appName__",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "client.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options/options.html"
  },
  "permissions": [
    "alarms",
    "contextMenus",
    "notifications",
    "storage",
    "tabs",
    "http://*/*",
    "https://*/*"
  ]
}