More T**DataType types missing returns

(same as the TPixmapDataType issue)
TBankDataType
TListDataType
TImageDataType

.. Did I miss any?

Hmm....

This perhaps indicates the TDataType stuff isn't being used.

Any objections to it being removed - it was never quite 'finished' and has been superceded to a large degree by reflection.

I use it. My tilemap engine has tile textures (and tile sets), when serialized it saves the texture's pixmap (for a tileset, all pixmaps nicely into one file).
If it were taken out.. I'd have to manually write methods/functions to save them (which, since I'm only using the TPixmap data type, isn't really that big of a deal).

I couldn't care!