Simple v1.03 fixes
The Empire Tree.
1) Please move the slider to the right side of the tree so that I don't have to constantly correct my map view for left-drift because in scrolling up and down one inadvertantly keeps touching the left side of the screen.
2) Make the empire tree refocus properly when selecting a planet (often it doesn't focus or focuses 'above' the target and you have to scroll down.
3) Stop the empire tree from refocusing every time a ship phase jumps in or out of a system displayed in the empire tree. It causes it to bounce up and down while you're trying to select a ship or watch damage/antimatter/etc of a particular ship.
AI Messages.
1) When the AI goes "PLANET X is MINE", i'd like an addition to the text of perhaps '(200 Ships of xyz arrived). i spend more time frantically scrolling through to find a solitary scout ship or light cruiser scouting around to be quickly obliterated either by 6 hangers or an actual garrison fleet at a choke point planet.
2) Perhaps I'm not familiar yet with the nuances of AI messages but I don't remember accepting someone as an ally simply because I made peace with them. Getting messages that planet xyz is being attacked or my fleet is being attacked causes constant panic in a large map game as I frantically try to find the planet only to go.. oh... that's not mine or it is a trade ship plying the routes. Anyways some sort of notice to distinguish ally (what ally???) comms versus my own, originator (my scout ship/trade/refinery vessel vs my planets/fleets) and some sort of notice to indicate how many enemies were actually observed (1 scout versus a cheap AI siege rush).
LONG TERM THOUGHTS:
1) Make a second impact on cost of fleet maintenance... size of groupings. this may allow you to play a little looser with cap rules.
2) Make rebellions more complex. Perhaps rebel fleets depart a planet without causing damage inside that system. Perhaps they behave like pirates except that A) they focus on you only,

You have to deduce what planet they are coming from (or perhaps planets if they can recruit other planets to their goal), C) you can recover the planet to you allegiance depending on how far the rebellion has gone on that planet (a couple of nuke capable capital ships might scare them into behaving) while a full out assault required on more hard core planets). anyways just thoughst.