Ikumi Keita <ik...@ikumi.que.jp> writes:
> Hi Frank,
>
>>>>>> Frank Selensky <frankselen...@live.com> writes:
>> I am using a theme with a dark background, so I rely on auctex to
>> convert the foreground color to the one set in my theme while previewing
>> latex fragments. This works fine for most latex fragments. But it does
>> not work for the lines of a fraction. Here the numerator and denominator
>> are converted to the right color, but the fraction line itself stays
>> black. Apart from that, in tikzpictures the color of the lines and text
>> is not converted and still black.
>
>> This happens for me for example when I try to preview the latex
>> fragments in the following:
>
>> ```
>> \documentclass[a4paper]{article}
>> \usepackage{amsmath}
>> \usepackage{tikz}
>
>> \begin{document}
>> \[\frac{123}{abv}\]
>
>> \begin{tikzpicture}
>> \draw(0,0) -- (1,2);
>> \node[draw] at (-1,-2) {A};
>> \end{tikzpicture}
>> \end{document}
>> ```
>
>> What I would expect is, that everything (where no other color was
>> specified explicitly) is turned into the foreground color of my theme
>> when previewing.
>
> Foreground color adjusting is somewhat fragile feature, and I'm afraid
> that preview-latex can't satisfy your request for pdflatex.
>
> According to ghostscript developer, preview-latex sets the "default"
> color, but if the pdf has explicit color specification, ghostscript
> obeys it to render the image out of pdf. I guess that pdflatex specifies
> black for the line of fractions explicitly while it doesn't for "texts"
> of numerator and denominator. If this guess is correct, fraction lines
> are always rendered as black.
>
> I confirmed that the following workarounds work, but I admit that
> they aren't satisfactory solutions, sorry:
> (1) Turn off PDF mode by C-c C-t C-p and set `preview-image-type' to
> `dvipng'.
> (2) Set `preview-pdf-color-adjust-method' to nil.
(I'm going through old bug reports that unfortunately weren't resolved
at the time.)
No further comments, so I'm closing this report.
Best, Arash
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