Add a proper curves map / redesign output map and all color mapping curves and mix curves, to be larger, better, and use key modifiers to speed up the work flow. People who render spend much time with these curves and they are really just terrible from a usability perspective.
Please fix colorcorrect map to have proper brightness & contrast. As has been shown mathematically these do not work properly. And that is why they are useless.
https://corona-renderer.com/forum/index.php/topic,10953.0.html