Related to #2271
Disk mimetypes:
A proposal for all (virtual) disks mimetypes:

Or maybe adding an accent color corresponding to the file type:

Another idea should be to use this model:

This for all icons and just changing the text below the pictogram (and the background color) to fit the mimetype.
Nice 馃憤 I prefer the second version 銆斤笍
Perhaps use blue for the background like they have in their logo? https://www.virtualbox.org/
I wonder if changing the background for each type is a bit too much IDK
In fact I'd like to add different background color to clearly differentiate them like with the hicolor icons (also like archives icons):

But if you think it's not a good idea I'm ok for adding blue background 馃し
Ahh, I see. Let's try that
One more screenshot:

Most helpful comment
Another idea should be to use this model:
This for all icons and just changing the text below the pictogram (and the background color) to fit the mimetype.