See light on the background in the middle of the image.
Whe I load it with “Default” profile I get while circles with magenta outline.
Guess it happens for a reason explained here: Visualizing the raw (sensor) highlight clipping | darktable
But how to fix that with RawTherapee? I tried changing HL Reconstruction settings, it didn’t help.
Positive (>1) Raw White-point correction helps somehow but worsens situation with other nearly overexposed areas to an unacceptable level.
In addition to the Defringe moule, I used the LH and CH curves in the LAB tab to reduce the chromaticity and increase the luminosity of purple. Have a look: IMG_9713.jpg.out.pp3 (10.7 KB)
Make sure that when you apply the PP3 that it picks up the DCP, so that in the Color Management > DCP section the checkboxes are enabled, as in my screenshot.