Histogram mouse scroll for black point has to big increment
Using histogram with mouse wheel for black point and exposure is very convenient, but the default increment for black point is +-5 which to my knowledge is too much for most pictures. Thus we are forced to open the exposure module to properly adjust this :(
An increment of +-2 or +-1 would make mor sense in my opinion as on my picture database I rarely go above 3.
As scrolling 2 or 3 steps with the mouse wheel is pretty quick and easy, I propose the attached patch which replace the increment of 5 by 1.
Reduce increment when scrolling in histogram for black point. Fixes #9206
Reduces the increment when scrolling in the histogram for the black point
from 5 to 1, as the default increse step is quite high.
Thanks to Emmanuel lacour for the patch