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From: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Satya Prakash Dahal <be2020se701@gces.edu.np>
Cc: 59944@debbugs.gnu.org
Subject: bug#59944: Transparency with alpha-background doesn't work well with PNG images on Emacs 29.0.60
Date: Mon, 12 Dec 2022 10:59:35 +0800	[thread overview]
Message-ID: <87y1rdiay0.fsf@yahoo.com> (raw)
In-Reply-To: <CAFOmjZjuu4VGJCkHzpzvEY4ndUBxKsB_QRXGe5W0s3dBwn6sxQ@mail.gmail.com> (Satya Prakash Dahal's message of "Sat, 10 Dec 2022 19:03:34 +0545")

Satya Prakash Dahal <be2020se701@gces.edu.np> writes:

> PNG images with a transparent background are not transparent. 
> Look at the image emacs_png_bug.png on the attachment.
> This is my first bug report. If I am missing something please let me know.
> Below are the commands i used to compile the emacs.
>
> git clone https://github.com/emacs-mirror/emacs.git
> cd emacs
> ./autogen.sh
> ./configure
> ./configure --with-mailutils && make
> make install

Well, does anyone want to fix this?

It should be "as simple" as making libpng use the same code in
x_query_frame_color to allocate transparent colors.  But I have no idea
how to make libpng do that.

In the meantime, you can use XPM images for that icon instead, which are
free from this problem.





      reply	other threads:[~2022-12-12  2:59 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-10 13:18 bug#59944: Transparency with alpha-background doesn't work well with PNG images on Emacs 29.0.60 Satya Prakash Dahal
2022-12-12  2:59 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]

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