@eriepa With respect to the possibility of different edit settings, they remained untouched as I exported with different soft-proofing and/or export options.
I won’t be back home until tomorrow evening and will supply some of my exports then.
However, even when a jpg image was displayed as I expected (lighter/brighter) the thumbnails were still darker?
As mentioned before – do NOT rely on the thumbnails’ rendition.
In those apps listed, the thumbnails can be used for a quick overview, but unfortunately not for comparing color reproduction (use PL’s PhotoLibrary instead).
My question related to possible different preset selections, not edit settings per se.
@eriepa That was what I said all options remained unchanged and the exports were all done on the same machine.
For each combination I then changed ‘Soft Proofing’ and/or export colour space and nothing else!
So I would have images designated as (PrP)[–] for example indicating ‘Soft Proofing’ = ProPhoto and ‘Export’ = default versus (PrP)[PrP] or (PrP)[SP] or (PrP)[sRGB].
Thank-you, Bryan. Your attention to detail is legendary in my book, no problems - just wanted to double check on preset vs edit, which I tend to put in two separate bins.