I noticed that colors of the battlescape gets "reversed" for brief moment as an explosion happens (the explosion color is not affected by this, only the background).
After talking with Yankes he said that this is deliberate (IE not a bug), a TFTD thing.
I really don't like it. It obviously isn't "unbearable" but: could it be made optional (selection between ufo style and tftd style)?
(Of course turning it off completely is fine too, for me, but there might be people who like it).