I got crazy idea. LCD element. we need two new types cotype(colortype) and numtype. one LCD pixel has default numtype, first pixel have: 1, second: 2 ... and you can choose cotype: red, blue, green, white and black. and you can change numtype to letters and they can have same numtype. there would be new menu where you can activate that numtype LCD. I know that it's nearly impossible to make it but something like that would be cool.