Hi Mathias,
small glitch in default DataPreviewTemplates_tpl.xml
Line 102: <Text Column="0" Row="4" ColSpan="2" Text="${MCPictureProp.img_dimensions}" />
Line 103: <Text Column="0" Row="4" ColSpan="2" Text="${MCPictureProp.fnum} ${MCPictureProp.exposure} ${MCPictureProp.exposurebias}" />
Text is displayed overlapping. Think code should be:
Line 102: <Text Column="0" Row="4" Text="${MCPictureProp.img_dimensions}" />
Line 103: <Text Column="1" Row="4" Text="${MCPictureProp.fnum} ${MCPictureProp.exposure} ${MCPictureProp.exposurebias}" />
ColSpan="2" removed and "1" instead of "0" in line 103