Right now, the UI is a mix between modern on-screen buttons such as the Perspective/Orthographic, Matcap, Line, Spline etc, and very odd empty panels on both sides.
Using what's done in Fusion360 and C4D, I propose the following UI Revamp, which includes everything directly on screen without losing functionalities, more in line with the "easy to use" feeling given by Plasticity's branding.