# Customization

* [Introduction](introduction.md)
* [Translations and Texts](translations.md)
* [Images](images.md)
* [Styles with CSS](css.md)
* [JavaScript](javascript.md)
* [Models](models.md)
* [Controllers](controllers.md)
* [Views and HTML](views.md)
* [Components](components.md)
* [Other Ruby classes (GraphQL, lib, mailers, builders)](ruby.md)
* [Gems](gems.md)
* [Application configuration](application.md)
* [Tests](tests.md)