Foremost is the long descriptions of the ships. These are the ones you get when you click the ship's name.
This is the page for the small cargo, for example
The small cargo currently says: "The first ship built by any emperor, the small cargo is an agile resource moving ship that has a cargo capacity of 5,000 resource units. This multi-use ship not only has the ability to quickly transport resources between your colonies, but also accompanies larger fleets on raiding missions on enemy targets. [Ship refitted with Impulse Drives once reached level 5]"
The numbers in these things are generally wrong now (5,000 cargo capacity, what drive it uses). Also, generally, the narrative is kinda lame. Try to say something about when a ship would be useful (or not!).