---
title: Architecture Reference Guide
---

This documentation section contains more in-depth explanation of different API components. If you are not familiar with the *IntelliJ Platform* API please refer to the [Basics](basics.md) section.

* [Project Model](reference_guide/project_model.md)
* [Project Wizard](reference_guide/project_wizard.md)
* [Custom Language Support](reference_guide/custom_language_support.md)
* [Frameworks and External APIs](reference_guide/frameworks_and_external_apis.md)  
* [VCS Integration Plugins](reference_guide/vcs_integration_for_plugins.md)
* [Localization Guide](reference_guide/localization_guide.md)
* [Messaging Infrastructure](reference_guide/messaging_infrastructure.md)
* [Multiple Carets](reference_guide/multiple_carets.md)
* [Color Scheme Management](reference_guide/color_scheme_management.md)
* [User Interface Components](user_interface_components/user_interface_components.md)