Alex refactored a messy “Latest News” block into a reusable component:
php core/scripts/drupal generate-theme my_modern_theme It generates a minimal, accessible, modern theme with SDC structure out of the box. The PDF emphasized: Stop thinking “pages”, start thinking “components” . modernizing drupal 10 theme development pdf
Alex especially loved (new in Drupal 10): Alex refactored a messy “Latest News” block into
Here’s a helpful, story-based guide to understanding Modernizing Drupal 10 Theme Development , structured as if you were reading a short PDF on the topic. Once upon a time in the digital kingdom of Drupal 10, there lived a front-end developer named Alex. Alex inherited an old Drupal 7 theme that had been “upgraded” to Drupal 9, and now needed to reach Drupal 10. The theme was full of theme() functions, .info files, and jQuery spaghetti. Once upon a time in the digital kingdom
themes/custom/my_modern_theme/components/news-teaser/
“It works, but it’s slow, insecure, and a nightmare to maintain,” sighed Alex. “I need to modernize.”
| Old Theme Feature | Modern Drupal 10 Replacement | |------------------|-------------------------------| | theme() function | Twig templates + hook_theme() for custom suggestions | | CSS sprites | SVG icons system + % include '@mytheme/icon.svg.twig' % | | Media queries breakpoints | breakpoints.yml + responsive image styles | | Custom grid system | CSS Grid + clamp() for fluid typography | | Manual cache busting | version: VERSION or version: 1.0.0 in libraries.yml |