1) Allow cycling through shipyards from shipyard screen
2) Allow background nebula/star field to be turned off. Epically the nebula, planning the Krynn is hard to see with a orange nebula background. You can get around this now by editing the pictures in the SPACE folder.
3) In ship designer, make the sort tabs sticky
4) Would love to see ship Attack/Defense sliders like in GC2 that governed (set the priority) the blueprint for upgrading the ship models weapons/defenses.
5) A ship blueprint slider to set preference for speed vs range. Similar to the GC2 A/D slider.
6) No idea what your score formula is but it appears to have the # of turns in the denominator. This greatly hurts game victories other than conquest as it requires many more turns to do some of the other conditions.
7) Please make the colony list screen bigger. There is much data and there is plenty of screen room available.