Mirrored Theme/Layout?

Greetings all,

I’ve done some searching and found http://leftbar.tiddlyspot.com/ , https://saqimtiaz.github.io/sq-tw/temp/menu-left.html , https://tiddlywiki.com/static/Alternative%2520page%2520layouts.html , https://tiddlywiki.com/static/Community%2520Themes.html and https://nicolas.petton.fr/tw/notebook.html.

I like the standard theme, but before I use those as jumping off points and reinventing the wheel, does anyone know of a layout that is available that simply flips the standard theme so that the sidebar is on the left and collapses left with the double-chevrons? It seems like an itch someone has scratched previously. Maybe it is an easy modification to a core tiddler if someone could orient me on the class that dictates which order things display?

Thanks for any pointers,

JD’s Whitespace theme does this I think. http://j.d.whitespace.tiddlyspot.com/