fix: support dark mode
fix: support dark mode

Signed-off-by: Henry Schreiner <bd7e3ce38f98be09c1400692efd0a63093148e8b@gmail.com>

scikit-hep/scikit-hep.github.io,scikit-hep/scikit-hep.github.io,scikit-hep/scikit-hep.github.io,scikit-hep/scikit-hep.github.io