Select Values for Tone Curve
Selecting a range of values from the image to be seen on the tone curve. The 'pop-up' indicates that this is done with ctrl+click to start the selection rectangle. This is not working. Previously such a selection was done using the color-picket ... this is also not working. Selection of single point is working correctly.
this is darktable 2.7.0+594~g03d44f57e ... Manjaro from Arch Repos.