One thing I miss during colour grading is using curves. Is this particularly difficult to implement as a filter - I noticed it wasn’t listed on the roadmap page. I have used levels, but with just three points (shadow, mid-tone and highlights) to modify the separate RGB and luma channels makes it harder to achieve a personal film-like contrast, compared to using multiple handles on the curves. Another thing that is useful is having a curves-specific eyedropper tool that, when clicked in the monitor window, will indicate that value on the curve for precise targeted changes.
Many thanks for all the on-going work done on Shotcut. After trying various Linux NLEs, it has become my preferred option. The usability and pleasant interface just gets out of the way to let you do your work.