Blocks are one thing - I think the request is for icons for the user interface. It's one of my problems as well, as I'm *not* a graphic designer and don't trust most of those free icon download sites. Historically they've been a common vector for virii and script kiddies.
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If you are going to fly by the seat of your pants, expect friction burns.
Adopt. Adapt. Overcome. Or be overcome.
