[Arralen]

- minor AI nations shouldn't offer intersettling treaties: as they do not leave their home system, they don't benefit from those

- AI is too eager to exchange colonization techs. Or the big nations simply demand them from the minor ones, I don't know.. . Or maybe this is ok - haven't seen the AI use remote mining ships/stations, so settling everywhere is somewhat ok to make it challenging to the human player. Problem with this: you can remote mine ressources, but you can't "remote mine" research/intel (research stations would be cool, but beyond the scope of a rebalance mod I guess)
There's a bug with colonization techs anyway. Starting with IceCol, I was offered Ice/Gas Col tech when dealing with a race which started with Rock Col and had aquired Gas Col tech. No way for an ice dweller to get Rock Col tech from other races.

- AI only uses PD 1, ever.

- planet types (values) need rebalancing (since SE3, I think ;-) ): ice worls are mostly small, gas giants are .. giants, mostly. What gives a huge penalty or boost, respectivly, to the races which have them as their home environment. As an equalizer, gas giants should be much lower on minerals/radioactives, but they're not, as it seems. And there's nothing in favour of ice worlds: maybe make them have generally ok or better conditions, so environmental resistance (or how it is called) isn't a factor for those races ?