The Wonderland Board

Have got all the keys but can't figure out what to use for the gates (I thought you would have to turn the white one to a rainbow). Can anyone give any hints or help please.
Panjit x

To open the white gate you pop the white/rainbow colour change timer button, and while the gate is rainbow coloured you pop the square rainbow switch.

Thanks for your help. Easy when you know how.
Panjit x