White?

[Jmuccigr]

These are very handy. Thanks for making them available. Would you be averse to making one in white (and maybe other colors or patterns, like diagonal lines)? I could do one based on yours, but I'm guessing you have a quick way and would make more ones more consistent with the existing.

[pointhi]

The Icons were simply made by color shifting the original one :P. White should be easily possible, but patterns would require some more work.

[Jmuccigr]

I hear you. I was thinking of patterns in part to help with color-blindness issues. Easier ones might be 50:50 vertical and horizontal.