I got it! I asked Nick Ing-Simmons about this, and it turns out that antialiasing is included in the new Tk804 distribution, which just entered alpha and is supposed to hit CPAN shortly. At the moment, it's available here.

Unpack the tarball and then run "perl Makefile.PL XFT=1". Then make the module as usual. Note that before you can do this, you need freetype, fontconfig, and Xft.

Once this is done, the font "{open glyph look}" can be specified to use an antialiased font. This is all I know at the moment, but it definitely does work.

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If I were a terrorist I'd mainly be afraid of polar bears. Because at the moment, I'm mainly afraid of polar bears, and I can't really see why that would change.
- slashdot