Examine source code of Transform Text

{
  "manifest_version": 3,
  "name": "Transform Text",
  "version": "1.2.0",
  "description": "Right-click any selected text to transform it — change case, escape newlines, and more.",
  "permissions": [
    "contextMenus",
    "activeTab",
    "scripting"
  ],
  "background": {
    "service_worker": "dist/background.js",
    "scripts": [
      "dist/background.js"
    ],
    "type": "module"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "transform-text@karlhorning.dev",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}