Examine source code of PromptTube

{
  "manifest_version": 3,
  "default_locale": "en",
  "name": "__MSG_extName__",
  "version": "1.3.4",
  "description": "__MSG_extensionDescription__",
  "permissions": [
    "clipboardWrite",
    "storage"
  ],
  "host_permissions": [
    "https://www.youtube.com/*"
  ],
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "action": {
    "default_title": "__MSG_actionTitle__",
    "default_icon": {
      "16": "icon-16.png",
      "32": "icon-32.png"
    },
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "prompt-presets.js",
        "content-script.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "prompttube@brnrd",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}