[reubenmorais]

Icon sets suck. They aim for system-wide consistency, but can never achieve it, because there are N+1 icons to be replaced. They focus too much on any given design pattern (flat, round squares, dark, etc.), and forget the basics: icons should represent the program, they should be memorable. The only sensible use case for an icon set I can think of is a graphic designer who wants to practice.

[oneeyedpigeon]

With you until the last sentence. How about icon sets for those who are colour blind? Whilst I'm sure you could, to some extent, automatically convert, I'm also sure there are nuances that only a human designer could cater for. Also, how about different sets for different nationalities/cultures between whom analogies can vary greatly.

It would be nice to solve the N+1 problem with a semantic hierarchy providing fallbacks, particularly in the case when only one application within a specific group is installed.