Exactly, it’s about the titlesec package not being available. (What’s your installed TeX-Distribution ?)
\definecolor just happens to be on the next line, but the error is not about adding colors.
Otherwise you’d get an error like
Undefined control sequence \definecolor
or similar...
Best,
Denis

Von: pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> Im Auftrag von gnpan
Gesendet: Samstag, 15. Mai 2021 09:31
An: pandoc-discuss <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Betreff: Re: Markdown to PDF via TeX: Tyring to change section title color

It should work OK. Maybe the titlesec package is not installed, check your TeX installation (<https://www.tug.org/texlive/>).
On Saturday, 15 May 2021 at 00:22:02 UTC+3 rurq...-Zl5T1cyB3pc@public.gmane.org<mailto:rurq...@d2iq.com> wrote:
Hi all,

I found several items on the web about customizing my pdf output from Pandoc.

I am calling pandoc with the following parameters:

     pandoc *.md -H seccolor.tex -o test_doc.pdf --table-of-contents --number-sections --indented-code-classes=javascript --highlight-style=monochrome -V mainfont="Palatino" -V documentclass=report -V papersize=A5 -V geometry:margin=1in -V monofont="Courier" --pdf-engine=xelatex

The seccolor.tex file is:

    \usepackage{titlesec}
\definecolor{DPurple}{rgb}{.75,.52,.153}
\titleformat*{\section}{\color{DPurple}}
% \sectionfont{\color{DPurple}}

When i run the command i get:
Error producing PDF.
! LaTeX Error: File `titlesec.sty' not found.

Type X to quit or <RETURN> to proceed,
or enter new name. (Default extension: sty)

Enter file name:
! Emergency stop.
<read *>

l.98 \definecolor

Should i be using another style? I WAS able to generate a standard PDF, but just wanted to add a splash of color. From what I read, this snippet of TeX should work.

Can anyone suggest how I can fix this?

Thanks,

Russ
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