If I've purchased all of the paid packs, is it safe to use this sheet for commercial use in its entirety? I'm noticing there's a few icons in this sheet that don't seem to be in any of the paid packs (like the red/green/yellow/blue orbs and their shattered variants; the white and black ones are in pack 8, but the rest aren't. The empty border icon doesn't seem to be in any of the packs either).