[Affinity Photo 'Warn when assigning working profile to unprofiled files' does not work with PNG adn JPEG files]

That's unfortunate. Is there any word on if/when this might get fixed? This lack of warnings can cause a lot of confusion when an unprofiled image accidentally ends up in a project where images are generally color managed.

[Affinity Photo 'Warn when assigning working profile to unprofiled files' does not work with PNG adn JPEG files]

I have the setting 'Warn when assigning working profile to unprofiled files' (Settings -> Color) enabled. When opening TIFF files it works as expected (I get the warning popup and it assigns the working profile that I have configured).

However, when opening unprofiled PNG or JPEG files it does not show a warning and assigns sRGB as the color profile, no matter what my working profile is.

Here are some unprofiled PNG and JPEG files that I tested this with (these were created by exporting the image from Affinity Photo with 'Embed ICC profiles' and 'Embed metadata' unchecked).

[Affinity Photo 2 PSD compatibility: Vibrance adjustment looks different between Photoshop and Affinity Photo]

8 hours ago, thomaso said:

If I consider that vibrance is a mixture of properties (~ saturation / brightness / gamma, contrast) and assuming (not knowing) there is no 1 identical algorithm for vibrance used by all software developers I would not expect a perfect identical result for this specific adjustment.

I suspect that you are right in that it isn't reasonable to expect Affinity Photo to have complex adjustments like vibrance behave identically to Photoshop. Though it is annoying if you have a specific color grade in Photoshop and then open the same PSD in Affinity Photo and find it is completely wrong.

[Affinity Photo 2 PSD compatibility: Vibrance adjustment looks different between Photoshop and Affinity Photo]

13 hours ago, firstdefence said:

Which image is from Photoshop and which is from Affinity Photo? it would help to title the images. 

Why are there 3 images?

The first image is the original unadjusted image, the second is Photoshop, the third is Affinity Photo. Unfortunately it appears I can't edit the original post anymore to clarify.

[Affinity Photo 2 PSD compatibility: Vibrance adjustment looks different between Photoshop and Affinity Photo]

I have an image with a Vibrance adjustment that was originally created in Photoshop and saved as a PSD. Opening it in Affinity Photo, I noticed that desaturated and brown colors looked much richer and more vibrant in Photoshop. It appears that the vibrance adjustment layer behaves noticeably differently between Photoshop and Affinity Photo. It would be nice if that was not the case (or at the very least if there was a way to reproduce the effect of Photoshops vibrance adjustment in Affinity Photo).

Attached are three images showing the original image and the same vibrance adjustment (0% saturation, 100% vibrance) as rendered by Photoshop and Affinity Photo respectively. Notice in particular that Affinity Photo seems to barely affect the red shades at all, whereas Photoshop saturates reds just as much as other colors.