Re: PNG image files with alpha channel

[Jason Rumney]

Chong Yidong wrote:
> Hmm, I'm not sure what's wrong with this image.  For an example of a png
> image with alpha background rendered correctly in Emacs, see
>
> http://www.w3.org/Graphics/PNG/alphatest.png
>   

Merely loading it into Gimp and saving it seems to be enough to fix the 
problem (even with the options "Save background color" and "Save color 
values from transparent pixels" ticked). So it must be something in the 
details of how Gimp saves transparency info vs the software Miles used.