
Have a look at select.html in the files subfolder of the l2hsup folder to see
the changes you can make using the wiz's headers and footers menu item.  You
can do such things as add logos and links to the headers and footers and set
the point where the format selection page returns to.

Similarly, the wiz's font size selection and color scheme selection items
affect the format selection web page in the same way.   (Unless you swap in
your own style sheet instead of index.css).

To have (make)l2h format the format selection menu entries in your own style,
you will need to edit the fs....sub files in the files subfolder of l2hsup.
Each fs....sub file contains two lines: a original string in select.html
without the menu item to be added, and one in which the menu item has been
added.  As is, the entries are added at the top of an unnumbered (<ul>) list.

To provide a customized select.html for a single document, copy select.html
from the files folder to the document's folder, renaming it select0.html, and
change it. The next time, (make)l2h will use this select0.html as template.
The "LaTeX source" item will not be added unless you do it yourself.
