I was thinking about this, I understand the argument from both sides. However, would it be possible to add a switch, even if this was in a text file away from the main interface allowing SkyMaxx to read the art datarefs and mix the SkyMaxx cloud coloring with X-Plane 11 haze / horizon color? The switch would contain a warning "Undocumented feature, unsupported, can break with each x-plane cycle".
I don't know how much the art datarefs would help mind you, it's an area of the x-plane SDK I haven't really played with.
EDIT -
Oooh, or, could SkyMaxx add it's own user datarefs, just one or two (I don't know the technicalities of X-Plane / SkyMaxx cloud coloring) so a tint color could be changed for blending effects.
eg SkyMaxxDataRefNear = 1.0f, 1,0f, 1.0f
SkyMaxxDataRefFar = 0.7f, 0.7f, 0.8f
It would open SkyMaxx to user color changes which could be changed with each Laminar beta.