Version 1.1 of NightSky is now avaliable at the download area
here! The new version have much better full-screen support that doesn't need to change the game resolution (thanks to
Ultimate Walrus for the Multimedia Fusion extension).
Thing is, I'm not yet 100% sure this will work perfectly on everyone's computers, which is why I don't yet dare to update the Steam version before I know people don't have problems with this build. After all, the non-Steam version still let you use an older build of the game.
Steam users who want to try this feature can grab an NightSky 1.1 executable
here though! Let me know how this build works for you. If there are no problems I'll update it on Steam too.