Instructions
Select "PictoChat" from the main menu of your Nintendo DSi or DSi XL.
Select a chat room to enter.
Tap the icon of the pen on the left side of the bottom screen. The pen flashes in a rainbow color.
Write a message or draw a picture on the bottom screen. The message is drawn in a rainbow spectrum, using the seven colors found in a rainbow.
Tap the pen again to change back to the color black.