We've had the current inventory UI for a while now, and it's basically built upon the original code from Overwatch Gaming, which is more than 10 years old now at this point.

I've been doing some refactoring and cleaning up of the code relating to the economy system over the past few days and have come up with a more modern design that also addresses a lot of the pain points in the current design.

Bare in mind, I'm still stuck with VGUI and painting things manually, so I'm limited in what I can do design wise.

Screenshots are below, let me know what you think: