I'm going through the icons today and finally making them consistent in areas where some had the newer appearance, and some had the old appearance. On 3DSPaint.com, all the icons will be layered, containing a background frame and an overlay of the glyphs, symbols, or images. Icons were 128x128 and scaled down to 64x64 so that they would look nicer on higher-resolution displays, but this was just causing RAM to get eaten up too quickly on the Nintendo 3DS. Since iOS and Android devices anti-alias images in the the browsers, anyways, there was no need to double the resolution. (Plus, iOS is getting a new native app shortly with the higher-resolution versions.) Once I finish the icons on 3DSPaint.com, I'll move to DSipaint.com.
UPDATE: Most of the icons are now update on DSiPaint.com, including the page for TMJ.