jamesjkim
Flush
For someone who isn’t colorblind it may be difficult to understand, but for colorblind folks, adding additional colors draws more attention to them and as a result more to try and decipher. If a 4 color deck had colorblind friendly colors, say yellow and blue, it could help resolve this. Association to suits leads with colors (eg yellow = clubs). Adding colors for the purpose of distinguishing suits becomes more of a problem for colorblind people (red/green colorblindness being the most common).I do not get the color blindness argument at all.
If one can distinguish two shapes that have the same colors, ie clubs and spades, hearts and diamonds, I do not understand how 4 colors would complicate the matters?
Sure, green and red / blue and green may be a bit similar, but not so much as two reds or two blacks, and the shapes are still different, as in a traditional 2 colors deck. What is the fuss about?
It’s similar to the game where the word is a different color than the name (eg Yellow word in Blue font) and you need to say the color font not the word shown.