
Since commit0f1b566918
, we use gjs' automatic getters/setters for the shader properties. Those handle the properties on the JS and GObject side, but they don't update the corresponding uniform, whoops. Revert the lightbox bits of commit0f1b566918
to get the effect back. Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1712>