hi
this one is more bug than feature...
if a module does not have an image a MG branded placeholder is shown. it seems that this placeholder does only work for >=18HP.
in case the module is smaller (e.g. 4HP) the image doesn't fit at all and looks like crap:

image

currently i am building a bunch of DIY modules and i am not able to attach images until those modules are finished. but already planning a new rack with those unfinished modules isn't really an exotic use case, isn't it?