drupal-tailwindcss-purgecss-test/web/themes/contrib/tailwindcss/tailwindcss.theme

<?php

/**
 * @file
 * Functions to support theming in the Tailwind CSS theme.
 */

/**
 * Implements hook_preprocess_HOOK().
 */
function tailwindcss_preprocess_html(&$variables) {
  $variables['attributes']['class'][] = 'tw-bg-red-200';
}

/**
 * Implements hook_preprocess_HOOK().
 */
function tailwindcss_preprocess_block(&$variables) {
  if ($variables['base_plugin_id'] == 'system_branding_block') {
    $variables['site_logo'] = '';
    if ($variables['content']['site_logo']['#access'] && $variables['content']['site_logo']['#uri']) {
      $variables['site_logo'] = str_replace('.svg', '.png', $variables['content']['site_logo']['#uri']);
    }
  }
}