Opacity on onion skin

[JoelMayer]

I dunno this has been mentioned often but did we ever open a feature request for it? In any case ye, just would like to be able to set the opacity/alpha of the onion skin color. If possible and even better of the outline mode too.

And yes i know of the „use pastelly colors“ trick, i still would like more control over it, it‘s often either too light or too dark (especially since the color overlay seems to be affected by the drawing color and a lot of traditional animators like sketching with blue i.e. which makes it even harder to see…)

Thanks!