Since I installed a new version, the semi-transparency is cut off and I have just plain black on transparent background as if there were no antialiasing, very ugly.

I wrote a script a while back that attempted to address this (available at It works by replacing the non-transparent portion of each layer with the result of merging the layer with the layers below (actually the "projection" of the layers below it).

The image at might help explain the result. An opaque background is expected and that gets "hard-coded" into all non-transparent portions of the GIF. Fully transparent regions remain transparent (but I doubt if this fact would be of much use other than keeping filesize down).

I got it working only to the extent that I needed it, so there may be some bugs in it of which I am unaware. If you let me know whether the script needs modification, I might revisit it.

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