I have just exported the hex nut from DT using 3 different intents: relative colorimetric, absolute and perceptual.
Workflow was
Input profile: standard color matrix
Working space: linear rec 2020
Output profile: srgb
Only other modules used, same settings for all, were Raw black/white points, white balance, orientation and demosaic.
All three look exactly the same. That’s not what I was expecting…
Edit: Tried use Lcms2 to apply output profile in ‘processing’ tab of settings both ticked and unticked.
And in case this is a build thing instead of a processing thing, I’m on darktable 3.2.1, mac 10.12.6. (And according to color sync my display profile is ever so slightly bigger than srgb, including in the blues, so that shouldn’t be the issue). Can’t wait to get Linux…
Gamut indicator for rec 2020 working space is showing OOG background (with fringe in gamut).
Edit: For good measure I downloaded a different srgb profile with perceptual intent and put it as output… same result. I even try to use that profile as working space… same result.