riddokun, That's what I do as well. Except that I use 2 different colour layers and I can adjust that per eye. It allows me to get some more extreme eyes when I want. This image is from the free Eyes of Soul update I did to fit the V3 textures to LaRoo. I used 2 different colours to get the multi colour effect.

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I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.
-Galileo