Changing backgrounds in the HighSpace annual ? Different color stars, etc.
I was working on some Traveller solar system maps, to give my eyes a rest from mapping dungeons, and there are 3 basic map backgrounds: red, blue, and yellow.
I did try using Irfanview to change a yellow one, to make it more reddish.
Doesn't look great, maybe I didn't give it enough red.
Anyway, I want to make different backgrounds, different color stars, less nebula in the area, etc.
So, any suggestions ? I was thinking about getting photos form Astronomy picture of the day, that aren't copyright, but what are some other copyright free sources ?