R = red
r = light red
O = orange
o = light orange
Y = yellow
y = light yellow
G = green
g = light green
B = blue
b = light blue
V = violet
v = light violet
P = pink
p = light pink
a = aqua
spacebar = black
c = brown
m = gray
n = new
e = erase
up arrow = thicker line
down arrow = thinnest line