[raymo]

They should be grey Ryan. It is then up to you to produce the end result that you want. When the stacked image appears you will see three tall cones displayed in the bottom half of the page. To get correct colour the contours of the cones should be aligned so they look like one cone.
The sliders that move the cones [RGB] are a pain in the ----, ultra sensitive.
To adjust the darkness of the background the cones as a whole have to be moved left or right.Easier to move them one at a time rather
than ticking the "move together" box at the bottom of the screen. Move left for darker and vice versa.] Don't make the sky too
dark as that will remove some of the detail in the image.
Generally a good starting point is to have the left side of the cones
intersect the curved line that starts at bottom left of the screen about 8mm
up from the bottom of the page. When you're happy with that go into
saturation and set the slider to 17, and click "apply" If you are then happy that the background has no overall colour cast, and no part of the image is over exposed you can
alter the colour saturation[set at 17] to suit your preference, and then
you're done. If there is some over exposure, click on the middle option,
[I've forgotten what it is called], between RGB and saturation.
Three pairs of sliders will appear. The upper one of each pair should not be touched. The top one lightens or darkens the the darker parts of the image, and should be set at the outset to 80.
The middle one adjusts the mid range tones, and should start off at 33.3
or thereabouts.
The bottom one adjusts the highlights, and should start off at 50.
So if you want to darken the sky a little, set the top slider to 90 or 100.
If you want to adjust the overall brightness use the middle slider.
If some parts of the image are over exposed, use the bottom slider to
reduce or remove this.
Hope this helped. DSS is pretty basic, and doesn't take long to master.
Incidentally, if there is a red, green or blue overall colour cast, just slide
the appropriate colour cone to the left a tiiiiny bit[very fiddly, often
overshoots]. When making changes to brightness etc: it is not instant, you will see the changes taking place in small rectangular areas.
raymo