It depends on the design of the icon. You generally can't scale Windows 3.1 graphics to higher resolutions without it looking like it's lacking details. The charm was with what you couldn't see and your mind could fill in the blanks.
Yep, that’s what I mean. Art comes from restriction, and the designers at Microsoft did really charming stuff with what they had to work with.
I still vividly remember such simple but delightful things as the Excel icon, or the icon of a stylized 386 processor for the System category in Control Panel.
