13/04/2025, by Ivan Menu Understanding Drupal Drupal System Requirements Installing Drupal 8 Drupal 8 Update Drupal Site Administration Drupal 8 Modules Drupal Modules Comparison Drupal Themes Drupal field types Configuration Management Multisite Drupal Accessibility Features Troubleshooting in Drupal Creating modules for Drupal Drupal 8 API Theming in Drupal Define a theme using file .info.yml Theme folder structure in Drupal Adding a region in theme Add CSS and JavaScript (JS) in Drupal theme Twig in Drupal Subthemes Subtheme: Using Classy as a Base Theme Classy themes css selectors Including Default Image Styles with Your Theme Include template Using attributes in templates Preprocessing and modifying attributes in the .theme file Working with Breakpoints in Drupal 8 Creating Advanced Theme Settings Theme Differences Between Drupal 6, 7, and 8 Updating Classes from 7.x to 8.x Inheritance in subtheme Creating Automation Tools for Custom Themes (Gulp.js) Instructions for converting Drupal Twig (tpl.php to html.twig) Z-index in Drupal Upgrade to Drupal 11 This section covers how to work with themes in Drupal.