Alpha blending/Opacity option

[autolisis]

Please correct me if I'm wrong but right now there doesn't seem to be any alpha blending/opacity option for the colors that are being set. It would be really nice to have multiple effects stack without one overriding the other.

I also tried messing around with getting the colors set and manually adding an alpha blend but I seem to get the same color that's set by the previous instance of the code rather than color set by other shared instances so it has no effect.

For instance, I would like to have SDK applications that apply their effects without completely turning off/overriding the default iCUE effects. So while having the default rainbow animation, I could override one key to show a status indicator.

Letting us set an alpha value when when setting a color will enable that.