How do I make an efficient mask effect?

Hey Everyone,

I'm looking for some advice on making a masking effect. I have cobbled together a demo to show you what I want but I am sure there has to be a better way to do this.

I essentially placed sprites on different layers and Z elevations to mask a wheel of color. When the phones button is pressed, words(mask) and the color wheel are set to visible. The color wheel is behind everything so you can only see what is showing through in the center of the letters.

This works for a demo but is not practical once I start trying to add this to a game where the background is anything other that white.

Any tips for a proper way to make a complex mask such as letter shapes?

Not sure if I am doing the dropbox link correct or not.

dropbox.com/s/bi4tehqrg8y2ceo/phone%20test%20for%20forums.c3p

Check out the "Blend modes" template in C3. You can put the color wheel and the mask sprite on a separate layer, set "Force own texture=yes" and they will not affect other layers.