The color difference between them is like a symbol for Ying & Yang, they complete each other and they can't be without the other one.

They are always accepting each other how they are. Still they argument and have a very different stubborn and playful Mind. But they are Brothers, nothing can change that.

They always protect each others back! And then they fight again!

In a Brotherhood you don't always share the same opinion and there is no need to! Because the Bond between Brothers is stronger than any difference of opinion!