https://bugs.winehq.org/show_bug.cgi?id=48492
--- Comment #1 from imirkin@alum.mit.edu --- While I'm hardly an expert in Windows BMP decoding standards, it looks like the dlls/windowscodecs/bmpdecode.c::bitfields_formats only has 32bppBGRA, while this appears to be 32bppABGR. Of course there's no such standard GUID defined, perhaps this maps onto the 32bpp4Channels variant (although I don't see it at all in dlls/windowscodecs).
If someone with a deeper understanding of how this is all integrated can give me a concrete way that this should be handled, I'd be happy to implement the change.