how to using color as theme ?

[json1]

I have problem when i desire to change color of my interface button - i need to replace it everywhere , how i can define common color - ( for exampe = ButtonColor:(R,G,B) ) and it can be applyable for all buttons with attached style ?

[ArenMook]

If your button is a prefab, you only need to change it in one place. This is why NGUI's example controls are prefabs. Otherwise it's a lot more difficult -- you need to select all your buttons.