It was a pretty simple change, as for the moment I just hard coded the Contrast to 0 and the Highlight Threshold to 100 (which is about 1 stop). Mainly because I am using RT to supplement, some other software (scans of camera film negatives) that pre processes the image, but I still want RT to have a first stab at adjusting the exposure, and BP and highlights.
So for me, the ability to influence the outcome of the auto levels is important. It would be pretty trivial to make the change configurable, in the PPS files, if you stored say 175, for the contrast, when you in fact wanted 75 for the value. etc.
But my solution works fine for me at the moment. Just expressing an interest, Indeed at some point I hope to understand the exposure section, well enough to write my own modified version, to support the film scanning project I working on.
I have still haven’t fully understood how the exposure algorithms work, so perhaps that a little too ambitious.