Snowy roofs looking good now; perhaps not so "realistic" in the strict sense, but we already discussed that above, and they do look the part to me.

Not so sure about the pentagonal igloos (and yes I know they're actually the detached add-on dormers window roofs!) 😉

[Although they would actually work quite nicely as sheds/small huts partly buried in snow drifts too, more seriously.]

Been there, done that (albeit quite some time ago now; for the Nibirum = Community Atlas system, for anyone unfamiliar)!

Should be a good one regardless of that, as it's an interestingly different style of mapping to work with, compared to what most of us here normally map.

There are things to be said for both options (plus of course, you can't assume everyone will wish to map somewhere where the snow falls in late autumn/early winter, thickens and only starts to thaw around the start of spring - i.e. the randomness of what happens in British winters!), and both are obviously buildings. However, the one with less snow cover has a bit more character to it, which would definitely support the idea you mentioned in your most recent post Sue.

I've not done much with Cartographer, so I hadn't realised there'd be such an issue with adding a glow to the symbols. There is a small glow built-in to the star symbols, but I agree a larger glow is really needed to show clearly what the object is when you're viewing the map at a distance.

The Red Sun system does look a little better.

If you still want to swap the two systems, I think you will be better moving the systems manually.

You could use rotate, providing you know the exact centre of the main orbit on which both systems lie, but this will also invert everything in the process.

Mirror copy would keep all the orbits and objects in their same relative positions once swapped to the opposite side of the orbit (don't do this on the labels though), but you would need to drawn the mirror line very precisely at an angle to accomplish this, AND mirror copy will force everything onto one Sheet if it wasn't to begin with. Plus you couldn't swap the two systems in one command, so one would overlap the other after the move (unless one set is on a different Layer, which you could hide before-hand).

Maybe mirroring or rotating the background star image would work instead? It would certainly be a simpler operation!

Not merely tin (or other sorts of metal) roofs, but any smoother kinds of roofing material, such as tiles or slates. The idea is to substantially roughen the surface in some fashion - using rocks or logs sometimes (still to be seen in the Alps today in places, for instance). Reason I suggested them is, and depending on the snow thickness, they can break-up the appearance of the smooth surface of the snow seen on the roof symbols currently.

Thatched roofs tend to be pitched steeply enough to shed snow (and water), thus snow shouldn't accumulate as much on them (in parts of Japan subject to heavy snowfalls, the thatched roofs have a particularly steep pitch, for example). This isn't so much because thatch can't cope with the snow or water, but because thatch is usually lighter than other roofing materials, so may not be sufficiently supported by the underlying roof structure to carry the additional weight of substantial snowfalls.