Hi Jimi,

I think you have found a bug in the Xtreme 5 animated gif export.

If you select transparent background and preview your animation before exporting the objects are given a white background and is anti-aliased to white.

If you export the animation without preview the gif is anti-aliased to the colour of your background and can be used on a web page with that background colour.

I'll make a report to Xara about this odd behaviour.