.png export on version 2.4 and 2.5 are dark and not matching prior version exports

[smgadbetatst]

Since version 2.4 of Designer 2 the .png exports are not match ing original file and much darker. I also tried in 2.5 beta and no better.

[walt.farrell]

Welcome to the Serif Affinity forums.

Can you show us your complete Export settings, and also your document's color format and bit depth? (E.g., RGBA/16 or RGBA/32 or RGBA/8)

[smgadbetatst]

2.3.1 Export Settings and color format and bit depth:

• RGB/32 (HDR)
• 300 dpi 1920 x 1080

2.5.0 Export Settings and color format and bit depth.

• RGB/32 (HDR)
• 300 dpi 1920 x 1080

Issue started in 2.4.0. I have attached the export settings of each as well as samples. Seems to only be happening on macOS. I did not experience the same issue on Windows 2.4.2.

 

[walt.farrell]

RGB-32 HDR support for PNG is new in 2.4. See the What's New page at https://affinity.serif.com/en-us/whats-new/ which says: 

Quote

32-bit HDR PNG support addedAvailable on both desktop and iPad

Windows, macOS and iPad

All Affinity apps now support import and export of 32-bit HDR PNG files, as described in the PNG specification (3rd edition). Both PQ and HLG are supported alongside full / narrow range and a full set of primaries. Files exported can be used directly in video editing applications or shared on the web (Chrome now supports HDR PNG files). In addition, legacy PNG and TIFF files exported from Photoshop with CICP data embedded in an ICC profile are also able to be imported.

You will also find specific export settings in the Advanced section that you may need to adjust. 

The Help should provide more info: https://affinity.help/photo2/en-US.lproj/pages/ExportPersona/exportSettings.html

Or this tutorial about the new function: