Well, it's about elephants. It's an app that lets you discover many amazing and mind-blowing facts about... well, elephants. If you ever wondered about elephants - wonder no longer. Because it's an app about exactly that.
Many of the technical decisions made are due to the 5KB source limit, like var instead of const or final, as well as somewhat mangled variables' names. Various rough edges are attributed to that as well, e.g. crossAxisAlignment: CrossAxisAlignment.start for Column widget takes up 44 bytes!
However, none of those seem to affect performance, so be it.
Font: Baloo Chettan https://fonts.google.com/specimen/Baloo+Chettan
Software: Flare https://www.2dimensions.com
Elephant based on: https://icons8.com/icon/24495/elephant