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## Re: -bg Transparent option isn't ignored when background color is set

 From: Jan-Åke Larsson Subject: Re: -bg Transparent option isn't ignored when background color is set in dvi file Date: Mon, 17 May 2021 18:53:57 +0000 User-agent: Evolution 3.36.4-0ubuntu1

 Hi,That was intended, yes, the manual should probably have said "The background color given will be ignored if there is a background color \special in the DVI.""Transparent" doesn't change the background color, it enables the alpha channel.The actual background color (visible, say, in a reader without the alpha channel) is controlled by the color spec, and overridden by a color \special.Did you want this to work differently, or was the problem that you were surprised by the behavior?BestJan-ÅkeOn mån, 2021-05-17 at 17:41 +0000, Sébastien Miquel wrote:Hi,The manual says that the -bg option is ignored if a background coloris set in the DVI, however this doesn't seem to be the case if -bgTransparent is used.To reproduce, I used a tex file with the following content.#+BEGIN_SRC latex\documentclass{article}\usepackage{xcolor}\title{Text}\begin{document}\maketitle\definecolor{bg}{rgb}{0.858, 0.188, 0.478} % magenta\pagecolor{bg}\end{document}#+END_SRCThen compile it using#+BEGIN_SRC bashlatex -interaction nonstopmode test_latex_bg.texdvipng -bg Transparent -o test.png test_latex_bg.dvi#+END_SRCThe resulting png is Transparent instead of magenta. If I specify -bgBlue instead, the background is set to magenta, as expected.Is this behaviour intended ?Regards,

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