Question, it is safe to wire the 3 colors to the same pin?

I find this lib more usefull than the x2 one due to the fact this is higher resolution and you can draw/write more on screen, with better quality text as well. The color of the text depend on what color you have wired to the resistor. But with all 3 conected it is a nice gray color. Is this OK to use for long term?