This is only tangentially related to sphinx-gallery, but I have a quick question for @Titan-C (or whoever might know)

I'm having a heck of a time figuring out how sphinx-gallery is able to get its .css file copied over to the built _static directory (so that it can be linked in pages). I see that https://github.com/sphinx-gallery/sphinx-gallery/blob/master/sphinx_gallery/gen_gallery.py#L116 seems to be adding the path to the static folder in this repo, but I demoed this on a different repo and none of the files were copied over.

Anyone know how we accomplish this in sphinx-gallery?