Experimenting with code block formatting.
More code box formatting.
Replace lstinputlisting uses.
Experiment with adding color to code source.
Use tcolorbox for code box frames.
Replacing lstlisting uses.
Replacing lstlisting uses.
Fix overlapping code captions.
Define the TOC in one place.
Change some names to be monospace.
Restore the background image but only for the first slide.
Add code formatting.
Formatting fixes.
Formatting fix.