you're correct. there's no immediately analogous Settable attribute listed there, but further down on the page ( underneath the table of Gettable attribs ) there is this little note:
GetAttribute() is an alias for method Get().

Most of the attributes listed above have an analog in convert. See the documentation for a more detailed description of these attributes.

which leads me to believe there *is* a way ... but convert is the command-line util ...

i'm *not* relishing reducing the color depth by dealing with the color indices ...

In reply to Re^2: Image::Magick and colors by geektron
in thread Image::Magick and colors by geektron

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