Examine source code of Dictionary Define

{
  "manifest_version": 3,
  "name": "Dictionary Define",
  "short_name": "Dict Define",
  "version": "1.0",
  "description": "Instantly define words without leaving the page. Get quick inline popup definitions via keyboard shortcuts, right-click, or offline.",
  "author": "Abu",
  "homepage_url": "https://abughalib.github.io/dictionary-define-extension",
  "permissions": [
    "contextMenus",
    "storage",
    "unlimitedStorage"
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "host_permissions": [
    "https://api.dictionaryapi.dev/*",
    "https://github.com/*",
    "https://objects.githubusercontent.com/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'none';"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "sql-wasm.js",
      "background.js"
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "sql-wasm.wasm"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "overlay.css"
      ]
    }
  ],
  "action": {
    "default_title": "Dictionary Define"
  },
  "commands": {
    "define-selection": {
      "suggested_key": {
        "default": "Ctrl+Space",
        "mac": "Command+Space"
      },
      "description": "Define the selected word"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "dictionary_define@abughalib.github.io",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}