UI for analysis tools
Pitivi has some effects that are useful to analyse videos. But since they are effects the only way to see them is add them to a clip and have them cover the video being analyzed.
It would be better to have them in a separate tab/miniwindow/overlay. So you can see both the video, the color grading effects controls and the scopes.
I don't know how feasible this is with GES, maybe we can draw the video with the effects on top in other windows?