Colored automation curves: how to disable or improve contrast?

The colored/tinted automation curves - following the track color - in C9.5 are generally a good idea, but as I prefer a lighter background in the arrangement window, some of the curves are barely visible when using lighter track colors like yellow or green.
Is there a way to either increase hue/opacity of the colors or switch off the coloring completely and go back to gray?

Nope, this is an issue right now. Dark themes work better because of this…