When I install the dark theme via gnome-tweak-tool, I see the following warnings/errors:
(gnome-tweak-tool:21856): Gtk-WARNING **: Theme parsing error: button.css:27:21: `px' is not a valid unit.
(gnome-tweak-tool:21856): Gtk-WARNING **: Theme parsing error: spinbutton.css:8:24: not a number
(gnome-tweak-tool:21856): Gtk-WARNING **: Theme parsing error: toolbar.css:83:0: Expected a valid selector
(gnome-tweak-tool:21856): Gtk-WARNING **: Theme parsing error: csd.css:107:27: 'wm_bg' is not a valid color name
When I install the dark theme via gnome-tweak-tool, I see the following warnings/errors:
This is with current Git HEAD (2aea932).