I hate

this:

if(letters[i] == 'm' || letters[i] == 'M' || letters[i] == 'w' || letters[i] == 'W')
{
translate(tx = cos((theta - radians(.5)) * i) * radius, ty = sin((theta - radians(.5)) * i) * radius, 0);
}
else
{
translate(tx = cos(theta * i) * radius, ty = sin(theta * i) * radius, 0);
}

which was replaced by

translate(tx = cos(theta * i) * radius, ty = sin(theta * i) * radius, 0);

and a fixed-width font.