PNG with indexed colors including transparency

[olhermite]

Hi
while it now works with photoshop, xnview still does not recognized the transparency
I've attached one file as an example.
the same file directly from the net :
https://emojipedia-us.s3.amazonaws.com/ ... _1f3b1.png
chrome shows properly the transparency but xnview still display a solid background.

note : I've tested this with the 2.43 version from october 2017
thanks!

[xnview]

currently there is no support for indexed colors + alpha