One of the most difficult parts of add-on development is making network-synchronized GUIs in the Create style.

I propose to add some way to create Screens easier, probably with some kind of factory pattern, data-driven system or some kind of dynamic gui creation(Like it's done in SpruceUI lib)

It often happened to me that I started thinking about an add-on and realized that 90% of the time I would be developing the interface, leading to the idea being shelved.

It's pretty easy to make gui's already, and abstracting that will just be unnecessary work and effort that could be directed elsewhere.