You can do all the colors on one svg. We're probably going to have to do a really medium blue, but guys. I just had the most EPIC idea ever:
NYANCAT AS BACKSPACE
RAINBOW OF KEYS GOING ALL ALONG `1234567890-=
basically, 2 different rainbow keys, one where it waves up, one where it waves back down, alternate the keys and it looks like a rainbow trail!
Edit: looks like some of you had similar ideas lol.
The SVG doesn't need the lines for the pixels, since the size of the thing is way too small to be able to see the lines between them... it'd probably just mess it up somehow knowing how complicated the process is.