Before entering the text to be sent, you can change the color by typing letters such as "#". The specific method is as follows:
#R indicates that the font at the back is red.
#G indicates that the font at the back is green.
#K indicates that the font at the back is black.
#Y indicates that the font at the back is yellow.
#W indicates that the font at the back is white.
#u+ text +#u Text is underlined.
#r word wrap.
# # Output a # sign.