--- /dev/null
+{#
+/**
+ * @file
+ * Theme override for displaying a tablesort indicator.
+ *
+ * Available variables:
+ * - style: Either 'asc' or 'desc', indicating the sorting direction.
+ * - icon: The Drupal Bootstrap glypicon.
+ *
+ * @see \Drupal\bootstrap\Plugin\Preprocess\TableSortIndicator::preprocessVariables()
+ */
+#}
+{{- icon -}}