The idea for opening this topic is to stimulate further development in x-trans demosaicing.
The current options in Rawtherapee are very good regarding sharpness and reconstruction of shapes. But there is a serious lack in highlight details, which exhibit lots of filter overshoot artifacts. And there is the bad looking noise with the crosshatch pattern.
Recently I’ve been comparing Amaze and IGV algorithm for bayer sensors and IGV gives to my eyes more pleasing look images. There is less overshoot on specular highlights and the noise is free from blobs of green and red.
(Now, IGV is not prefect either… It handles clipped data horrible.)
I would be nice to have more algorithm choices. An algorithm that is more focussed on image integrity regarding noise and specular highlights and less on sharpness and detail extraction.
Example of overshoot: