Add option to set the min/max brightness for specific screen - syncing a group

[imkebe]

I use 3 physical displays + 2 Airplay.
Delta syncing is a neat feature however when you reach the minimum/maximum values for some screens it start to offset and after some time the screens have missmached brightness. That's why I would preffer a non delta sync. Basically it works fine however for he virtual screens is doesn't know the real brightness - effectively my virtual screens (also the Airplay ones) are about 20-25% dimmer then the rest.

I think the ability to set the max and min brighteness (like virtual nits) would be a enough solution. It may be also fine to set some kind of curve to set the brightness levels should scale base to the default display.

[waydabber]

Hi there, I plan to add this feature, hopefully in one of the v3.x updates:

#1393

Let me know if you had something different in mind!

[imkebe]

#1393 might be fine however my main issue is that the virtual screen has no way of knowing the hardware limit of brightness. So there should be an option to set the max value to use is in mapping table or/and default linear? auto scalling.

Instead of table i would rather prefer a curve setting like https://medium.com/@alladinian/making-a-b%C3%A9zier-curve-editor-in-swiftui-7252b04585bc

or a predefinied curves to choose from.