Nice to have the editing point interactive now. But could you please add a modifier, like CTRL? I constantly keep changing the tone curve when I actually want to zoom in/out.
EDIT: Another issue (which is a general one): I also get the error message that the tone equalizer needs to be after distortion module. Now I run darktable localized (German), but the message appears in English and I have to guess how the devs translated “distortion tool”.