i wanted to upload a signature picture, but then i noticed the rule: "Note: The maximum size of your custom image is 500 by 100 pixels or 2.0 KB (whichever is smaller)." a tiny 20 by 20 pixel is about 0.7 kb, merely 1/125 of allowed area yet already like 1/3 of allowed kb. the allowed area and kb seem to be out of proportion. are they really so, or "2.0 KB" being a typo? please clarify, thanks!