[Feature request] Improvements on Color Workspace

I recently tried DaVinci Resolve and I think the main thing I missed on Kdenlive in comparison is a more fluid workspace for color grading, color correction.

On DaVinci Resolve on the Color Workspace you have a histogram/curve for levels adjusting that automatically shows the info for the clip the timeline cursor is on, and allows you to edit the white and black input and output levels and curves directly in that histogram, as well as for lift/gamma/gain and a color balance tab. Those changes are applied only to the active clip.