while playing a game on max size setting (100 stars, 10 suns, though i actually got 108 planets) i noticed some errors in the display of summary screens when you have alot of planets:

the crystal and metal summaries get messed up first, since you have many asteroids...

the screen shot details how it looks with 41 planets owned (notice the missing planet names and ressource ship lines at the bottom)



shortly after the top was already out of the viewing screen



of course the credits window has the same problems (and also features the missing planet names/trade ships later, though i don't have a screen of that)



apart from that the ui seemed to scale fine, though bounties above 10.000.000 $ will probably look bad as well...