[REQUEST] Side menu styling customization

[dlewand691]

Throwing out another idea/request for styling the side menu:

Customization of the side menu active title weight, active subsection title weight, background colors and overall spacings.

I'm currently using CSS to do these overrides and would like to also add a background color to the current active section title and subsection title. Because each instance is dynamically being re-styled with inline styles it's currently not possible. A more simplified approach would be to add/remove an .active class which would eliminate the need for so many style tags.

I'm also adding the triangle character for visual separation as well but probably wouldn't be needed if background colors could update.