XNView 1.96.1
Test file: a TGA with a black background with an alpha (RGBA).
If I show this in the viewer, it shows as expected .. no problem there. I found the following inconsistancy however..
If I do 'File > Save' or 'Save as' to JPG... The alpha gets subracted from the overall image which ends up me having a JPG file with a white background.. If I do the same thing but using the 'File > Export' it doesn't substract, which I belief is the way it should be. (what the user sees is what the users gets as output, right?)
It would be nice to have this as an option though (off by default ofcourse) and the ability so set a new background color.. I'm not sure why yet.. But I'm sure it will come in handy sometime

Cheers,
wOLV.