http://imageshack.us/f/221/40189693.png/
These are very non-gameplay threatening problems that irritates me to no end.
1) See the Pause/UnPause messages for the locations where messages usually show up. They're left justified inside an arbitrarily defined invisible text box. Can't you just center them, or show them console-style in a specifically defined space? (Bottom left, or just above the bottom bar) Seeing random short messages that are completely off center is really disgusting.
2) Unify capitalization styles. See bottom right, notice how in Planet health, the h is lower case, but when you hover over a planet, it is upper case. There are other attributes with the same problem.
3) Number formatting. See bottom right, see how the arrow is off center, and the 3000 is violating the general margin given to the box? (Top, left, and bottom have the same margin size.) Since the dialog box isn't overlaying something that you are comparing the numbers to anyways, why can't you just display it in-line directly after the description?
These exist in Trinity too. I know these are purely cosmetic, but they were enough to drive me insane and made my experience with Trinity much worse than otherwise. It's like being forced to read everything in Comic Sans. Bad design kills your soul.
That said, great game, rebellion's looking really good.