Feature request : continuous transition for Oval and Rectangular gradients

[pierrelabreche]

Rather than a hard choice between oval and rectangular, would it be possible to
1. Introduce a corner radius setting for the rectangular shape gradient
2. have a continuous control of the shape, for example :
0 = fully rectangular, with rounded corners,
1 = fully oval ;
in-between values = as desired between oval and rectangular


This feature would be similar to creative vignetting "roundness" in DxO Filmpak
https://userguides.dxo.com/filmpack/en/customize-tab/

[jsachs]

Added for next release.