Re: backgrounds on png pix

Andrew Thompson wrote:

> The transparency value of the colors.  It is
> tricky though, when you might have 22 slight
> variants of 'off-white'.  Also, that icon was
> meant to show partially transparent 'effects'
> around the exterior dots.  Those pixels need to
> be made partially transparent as well, in order
> to get the right effect with a different background.
> 
> How you would achieve all that in gimp (or any way
> other than editing by hand), I do not know.

Color to Alpha, under the Colors menu.