There is now a multi-colored version for setbitmap, set color to -2 and use these letters:
a Black
g Green
b Blue
n Navy
o Olive
p Purple
r Red
q Aqua
w White
y Yellow
s Silver
l Lime
example:
char b[24][33]=
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"gggggggggggggggggggggggggggggggg",
"gggggggggggggggggggggggggggggggg",
"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
"nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn",
"nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn",
"oooooooooooooooooooooooooooooooo",
"oooooooooooooooooooooooooooooooo",
"pppppppppppppppppppppppppppppppp",
"pppppppppppppppppppppppppppppppp",
"rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr",
"rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr",
"qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq",
"qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq",
"wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww",
"wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww",
"yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy",
"yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy",
"ssssssssssssssssssssssssssssssss",
"ssssssssssssssssssssssssssssssss",
"llllllllllllllllllllllllllllllll",
"llllllllllllllllllllllllllllllll";
setbitmap(b, -2);