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From: | Jason Rumney |
Subject: | Re: Several suggestions for image support |
Date: | Fri, 16 Apr 2004 10:09:07 +0100 |
User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6) Gecko/20040113 |
Kim F. Storm wrote:
David Kastrup <address@hidden> writes:PNG images support transparency. Emacs can't make use of it. You can only have Emacs declare a particular color as transparent. This is dissatisfactory. It should tell the PNG decoding routines Emacs' background color for the purpose of transparency.Using `:mask heuristic' should make the image background transparent. The tool-bar code uses this.
I don't think :mask heuristic has anything to do with PNG transparency. It is for heuristically determining the background color of a non-transparent image, in order to make it transparent.
That said, PNG transparency used to just work back when I was porting image support to Windows.
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