Change the color of the text by calling COLOR [Color Constant] before printing a text. The color constant must be one of the following...
#TBLACK, #TBLUE, #TCYAN, #TGRAY, #TGREEN, #TLIME, #TMAGENTA, #TMAROON, #TNAVY, #TOLIVE, #TPURPLE, #TRED, #TTEAL, #TWHITE, #TYELLOW.
If you want to see the complete list from within SmileBASIC you can check out the help entry for COLOR. (Press [ ? ])