How do I apply a command to all OpTeX slides?

Question

OpTeX has a built-in set of macros for slideshows. I like the API a lot, but not so much the design of it.

In particular, I am trying to:

• use blue for hyperlinks,
• Use a different colour (say red) for titles,
• Increase the font size.

\slides \wideformat \slideshow

% Customization
\_let\_scolor=\Red
\_typosize[18/21]
\hyperlinks\Blue\Blue

\tit \OpTeX/
\subtit John Doe

\pg;
\sec Useful links
* Wikipedia: \url{https://wikipedia.org}
* DuckDuckGo: \url{https://duckduckgo.org}

\pg.

However, only the first slide is affected by the three commands I wrote.

Answer 1

As documented, the command \slideshow must be the last command in the decleration part of the document. Thus your document should be as follows:

\slides \wideformat 

% Customization
\_let\_scolor=\Red
\_typosize[18/21]
\hyperlinks\Blue\Blue

\slideshow


\tit \OpTeX/
\subtit John Doe

\pg;
\sec Useful links
* Wikipedia: \url{https://wikipedia.org}
* DuckDuckGo: \url{https://duckduckgo.org}

\pg.