[Uml-devel] ListView suggestion - use bigger icons for diags

[Oliver Kellogg]

While we're at it: When using large models, the listview tends to get
unnecessarily blurred with all the "ABC" and "XYZ" labels on the
listview item icons. Those labels do not convey any info and make it
harder to distinguish the user given names of objects etc.

I suggest removing the "ABC" and "XYZ" from the listview item icons.

--Oliver