diff --git a/lib/galaxy/config/sample/datatypes_conf.xml.sample b/lib/galaxy/config/sample/datatypes_conf.xml.sample
index faf85d63cae..49270c49811 100644
--- a/lib/galaxy/config/sample/datatypes_conf.xml.sample
+++ b/lib/galaxy/config/sample/datatypes_conf.xml.sample
@@ -142,8 +142,12 @@
     <datatype extension="d3_hierarchy" type="galaxy.datatypes.text:Json" mimetype="application/json" subclass="true" display_in_upload="true"/>
     <datatype extension="cytoscapejson" type="galaxy.datatypes.text:CytoscapeJson" mimetype="application/json" display_in_upload="true" description="Cytoscape JSON format for network visualization, typically containing 'nodes' and 'edges' in a JSON object." description_url="https://js.cytoscape.org/#notation/elements-json" />
     <datatype extension="imgt.json" type="galaxy.datatypes.text:ImgtJson" mimetype="application/json" display_in_upload="True"/>
-    <datatype extension="geojson" type="galaxy.datatypes.text:GeoJson" mimetype="application/json" display_in_upload="True"/>
-    <datatype extension="vitesscejson" type="galaxy.datatypes.text:VitessceJson" mimetype="application/json" display_in_upload="True"/>
+    <datatype extension="geojson" type="galaxy.datatypes.text:GeoJson" mimetype="application/json" display_in_upload="True">
+      <visualization plugin="openlayers" />
+    </datatype>
+    <datatype extension="vitesscejson" type="galaxy.datatypes.text:VitessceJson" mimetype="application/json" display_in_upload="True">
+      <visualization plugin="vitessce" />
+    </datatype>
     <datatype extension="data_manager_json" type="galaxy.datatypes.text:DataManagerJson" mimetype="application/json" subclass="true" display_in_upload="false"/>
     <datatype extension="dbn" type="galaxy.datatypes.sequence:DotBracket" display_in_upload="true" description="Dot-Bracket format is a text-based format for storing both an RNA sequence and its corresponding 2D structure." description_url="https://wiki.galaxyproject.org/Learn/Datatypes#Dbn"/>
     <datatype extension="fai" type="galaxy.datatypes.tabular:Tabular" display_in_upload="true" subclass="true" description="A Fasta Index File is a text file consisting of lines each with five TAB-delimited columns : Name, Length, offset, linebases, Linewidth" description_url="http://www.htslib.org/doc/faidx.html"/>
@@ -282,6 +286,7 @@
     <datatype extension="tiff" type="galaxy.datatypes.images:Tiff" mimetype="image/tiff" display_in_upload="true">
         <infer_from suffix="tiff" />
         <infer_from suffix="tif" />
+        <visualization plugin="tiffviewer" />
         <display file="image/avivator.xml"/>
     </datatype>
     <datatype extension="tf2" type="galaxy.datatypes.images:Tiff" subclass="true" display_in_upload="false"/>