--- a/src/pyams_file/skin/templates/picture.pt	Tue May 04 12:38:32 2021 +0200
+++ b/src/pyams_file/skin/templates/picture.pt	Fri May 07 14:18:00 2021 +0200
@@ -1,5 +1,6 @@
 <picture tal:define="image_url tales:absolute_url(image);
-					 thumbnails tales:thumbnails(image);">
+					 thumbnails tales:thumbnails(image);"
+		 class="${pic_class}">
 	<tal:if condition="xs_width">
 		<!-- xs source -->
 		<source media="(max-width: 767px)"
@@ -50,6 +51,7 @@
 			 tal:define="width str(round(1200 / 12 * def_width));
 						 thumb thumbnails.get_thumbnail(def_thumb + ':w' + width);
 						 timestamp tales:timestamp(thumb);"
-			 alt="${alt}" src="${image_url}/++thumb++${def_thumb}:w${width}?_=${timestamp}" />
+			 alt="${alt}" src="${image_url}/++thumb++${def_thumb}:w${width}?_=${timestamp}"
+			 data-ams-data='${data}' />
 	</tal:if>
 </picture>