OS: Windows 64bit (22H2), display resolution 3840x2160, win scaling 150%
Curves dialog, R, G, B modes
right click allows to remove control points of other channels
To reproduce:
1. run clean portable XnViewMP
2. open any image
3. open Curves dialog, Image → Adjust → Curves
4. use R, G, B modes to add some points (see example picture)
5. select any mode, e.g. Green and right click on control point of other channel
control point of other channel will be deleted
Expected behaviour:
R, G, B modes shall only edit they own control points.
It shall be possible to delete control points of other color only in RGB mode.
