How to get virtualmin file manager to display actual image thumbnails instead of generic icon

Hi guys,
as the topic heading asks, in my virtualmin file manager, image thumbnails do not display the actual images rather, a generic thumbnail displays instead.

I would like it to display actual image thumbnails.

My reason for doing this is to make it faster and easier to determine what the images represent in the event that the image file name is not descriptive enough (at persent i have dozens of images with numbers for file names (yes i realise this was a silly mistake)

Anyway, is setting virtualmin to display actual images for thumbnails possible?

see image of virtualmin file manager displaying generic thumbnails on my google drive…