How to create an ON + shimmer with multiple colors

[dm9991966]

Hello all,

I'm trying to generate an effect similar to the Shimmer option in the ON effect, however using mutiple colors in the model.  So for example, in a single line model, I'd like the pixels to alternate orange/purple/orange/purple all the way down the string, and flash quickly like the ON Shimmer option.  Ideally the solution should work with 2+ colors, where the color pattern simply repeats all the way down the string, and flashes.

Thanks in advance for your thoughts!!

[keithsw1111]

Two layers. One to set the colours then a mask layer to shimmer it.