[//]: # (title: Plugin Structure) Click the following topics to learn more about the plugin system structure and plugin lifecycles: * [](plugin_content.md) * [](plugin_class_loaders.md) * [](plugin_actions.md) * [](plugin_extensions.md) * [](plugin_services.md) * [](plugin_listeners.md) * [](plugin_extension_points.md) * [](plugin_components.md) * [](plugin_configuration_file.md) * [](plugin_icon_file.md) * [](plugin_dependencies.md) > If a topic you are interested in is not covered in the above sections, let us know via the "**Was this page helpful?**" feedback form below or [other channels](getting_help.md#problems-with-the-guide). > > Please be specific about the topics and reasons for adding them, and leave your email in case we need more details. > {type="note"}