DOpus 10: Cannot match Folder Tree settings with Tiles view

I have set up Folder Tree Appearance in DOpus 10 to "Show drive labels as: C: (Local Disc)" but I can't find anywhere to apply this style to the drive icons in the "Tiles" view in the main lister window - it will only display "Local Disc (C:)" style.

I can't find any reference to this in the preferences or help files.

Anyone know if I'm missing anything obvious ?

AFAIK there isn't an option to change it outside of the tree.

It may get the format from Windows, though I'm not sure and I can't find where to change it in Windows either (maybe I'm thinking of something that was in TweakUI on XP but isn't exposed in Vista/Win7; not sure).