I was looking for a way to get the manual style without changing the Scribble file because (currently) Shawn's md2scrbl uses only #lang scribble/base and I didn't want to change the generated Scribble file for every run of the tool.
I might be missing some context, but you can simply include all the css-files
making sure that manual-style.css , manual-racket.css and manual-fonts.css are
included last.
The properties defined last will override properties defined previously.
If you need a single file, I believe you can simply concatenate them.
Actually, I didn't know this (or maybe I knew and forgot), so thanks for pointing it out. I used "Posix" - maybe a bit sloppily - more to mean sed won't be present on Windows.
Then again, I was looking for a local workaround to make testing of Shawn's package easier for me, so it's ok (for me) if the workaround works on my Linux system.
Yes, the command line from my example above includes all three CSS files.
But to be honest, I haven't checked (at least not yet) if the three files should be included in a specific order, e.g. manual-style.css before manual-racket.css or vice versa.
...
Ok, I just now looked at the glossary HTML file generated via info.rkt's scribblings section and the order of the CSS file includes in the HTML file is manual-style.css, then manual-racket.css - and manual-fonts.css isn't included. Maybe its content is already in one of the other two files.