09_Creating a preprocess function for a theme function
Custom Twig Extensions and Preprocess Functions | Drupal Module Development Tutorial
DrupalCon Denver 2012: THEME PREPROCESS FUNCTIONS: AN INTRODUCTION
73. How to use preprocessing functions (a Drupal how-to)
PreProcess Function in Drupal 9, Drupal 10 | D4Drupal
Drupal Day 12, Drupal Theming Part 6 - Preprocess hooks continued, Field Group module
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Theming the node - top area and fields π₯ͺ Real Life Drupal 8 Theming Project Episode 11
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04_Adding new variables with preprocess functions
Overriding Templates in a Custom Theme | Drupal Theming Tutorial
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Last Updated: August 22, 2026
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