It is their preference, although some would prefer the use of colour that are more attractive, matured and calm as well as the type that can suit the comfortability of the eye for those that are colour sensitive, many will preference a dark screen in most of these appearances and shade of green have been found more suitable as well together with this kind of blend.


Nothing, its just about preference and choice, you can choose your own colour as long as its going to be more attractive to gamblers.


Probably, because the colour is also important when it comes to user interface preference because that alone can keep some players.