I remember I opened a PSD file which did this.
It had like 4 hidden "adjustment" layers, each for a specific color, and all the elements that used a certain color were being changed depending on which adjustment layer was visible.
Something like this:
Notice the visible "pink" layer. That layer should make a part of the graphic on the left pink.
And when you make the blue layer visible, that part of the graphic graphic should turn blue:
Does anyone know how can I achieve this?