Hi there,
Had a request in regards to the daylight rig, not sure how tricky/easy it would be to implement, or if its a core question.
Essentially I wondered if its feasible to add a fill color? Right now we obviously have Sun Color and Sky Color, so my hope here is to add a Fill Color which would override the sky's fill currently (this would behave identically to my note below).
There has always been the work around of adding a HDRI environment, setting the sun to Mix sky texture, and control the fill from there with SRGB. But with this you then need to duplicate the daylight rig and set it to visible so you can see the sky again.
So its a bunch of steps (and rather cumbersome to adjust) so I would suggest to dissolve this with simply having the fill included in the daylight rig out of the box.
Would be tremendously handy, hopefully I'm clear above but happy to comment further