- How to create a sub-theme?
- What are the new file formats in a Drupal 8 theme and what we use them for?
- What is new in CSS file formatting, architecture, management?
- How to use Twig in our templates?
- How to add CSS / JS (libraries) to our theme?
- How to find information about theme related changes in Drupal 8?
Slides from my session at Drupal Developer Days, Szeged, Hungary, 2014.