I know that the tech tree descriptions give a list of ships that each research item makes progress towards but it would be nice to have a ship catalog of all the player designs. I have specific attack and defense designs for different stages of the game and I somtimes have difficulty identifying which technology is still not researched to access a specific ship design from a previous game. The catalog might list the information shown during ship design but it would also show what technologies are missing to access that ship design.