[TYPO3] TS: BgrndColor of partially transparent GIFs when scaling with IMG_RESOURCE

[Joerg Wagner - DigiLog multimedia]

Hi all !

I am trying to use partially transparent GIFs as backgrounds for <div> tags. 
Where the GIFs are transparent the CSS background-color of the div can be 
seen as expected. I use hard edges between GIF foreground and transparent 
background (no antialiasing) so this works fine.

The user can select the GIFs in a TemplaVoila FCE and I also have provide 
for the possibility to scale the GIFs as needed.
Now, when I scale the IMG_RESOURCE that renders the GIF as needed (by 
setting the width or height prop of the IMG_RESOURCE), the edges to the 
transparent background get antialiased against white color(!) which is not 
the background-color of my divs, so the edges produce a visible jaggy white 
glow.
Is there any way to define the background color that the IMG_RESOURCE object 
uses to antialias against when scaling transparent GIFs? TSref shows now 
such property for IMG_RESOURCE.

Thanks for your help.
--
Jörg Wagner
DigiLog multimedia