Examine source code of Mouse Hover Translate

{
  "name": "Mouse Hover Translate",
  "manifest_version": 3,
  "version": "1.74",
  "browser_specific_settings": {
    "gecko": {
      "id": "{d8f2a4b6-5c9e-4f7a-8d3b-1e6c9a2f5b7d}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "to_16.png",
    "48": "to_48.png",
    "128": "to_128.png"
  },
  "description": "Click word to translate or select text (Mouse hover) to translate.",
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "options_ui": {
    "page": "options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "js": [
        "lib/jQuery-3.7.1.min.js",
        "lib/transover_utils.js",
        "lib/popupTemplate.js",
        "lib/tat_popupTemplate.js",
        "contentscript.js"
      ]
    }
  ],
  "action": {
    "default_icon": {
      "19": "to_19.png",
      "38": "to_38.png"
    }
  },
  "commands": {
    "copy-translation-to-clipboard": {
      "description": "Copy translation to clipboard"
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "declarativeNetRequest"
  ],
  "host_permissions": [
    "https://*/*",
    "http://*/*"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "lib/*.js"
      ],
      "matches": [
        "https://*/*",
        "file://*/*"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  }
}