--- /dev/null
+{#
+/**
+ * @file
+ * Default theme implementation for the slick-thumbnail item template.
+ *
+ * Available variables:
+ * - attributes: An array of attributes to apply to the element.
+ * - item.slide: A renderable array of the thumbnail image/background.
+ * - item.caption: A renderable array containing caption text.
+ * - settings: An array containing the given settings.
+ *
+ * @see template_preprocess_slick_thumbnail()
+ */
+#}
+{%
+ set classes = [
+ 'slick__slide',
+ 'slide',
+ 'slide--' ~ delta
+ ]
+%}
+{% block slick_thumbnail %}
+ <div{{ attributes.addClass(classes) }}>
+ {{ item.slide }}
+ {% if item.caption is not empty %}
+ <div class="slide__caption">{{ item.caption }}</div>
+ {% endif %}
+ </div>
+{% endblock %}