The +50% naval capacity prestige powers don't do anything any more. I have enough warrior drones at this point to get me way passed the hard limit. They're just a prestige point tax to get to the things beyond them, with no actual return on investment.
The upgrade button should not do anything if the ship design doesn't need another button. This is triplely true for the save design button. That should *never* cause an upgrade.
 "Defender Idle 2"){kind=icon}
 "Idle Mine EX 2 Remastered"){kind=icon}
 "Idle Space"){kind=icon}
 "World explore"){kind=icon}
because of performance, battle system cannot handle millions of ships because each ship because it simulate every ship