Examine source code of vi Ref

{
  "manifest_version": 2,
  "name": "vi Ref",
  "version": "1.0",
  "description": "A searchable sidebar listing all vi commands. Flat, secure, no icons.",
  "browser_specific_settings": {
    "gecko": {
      "id": "vi_ref@example.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "sidebar_action": {
    "default_title": "vi Ref",
    "default_panel": "sidebar.html"
  }
}