The user interface (UI) of Marvel has always been clean, but v40 adopts a "Dark Mode First" aesthetic that is easier on the eyes during those late-night coding sessions. The toolbar has been decluttered, grouping tools into contextual clusters that appear only when needed.
Gone are the days of flipping through paper manuals. The v40 includes interactive wiring diagrams that highlight circuits when you select a DTC. The built-in DTC library provides not just code definitions but also common failure mechanisms, waveform examples for oscilloscopes, and step-by-step repair procedures.