9e86cdbe71
We want to use the fast path of filling the entire area if either the left and right shadows would overlap or the top and bottom shadows. The latter check was wrong due to a typo resulting in the regular path being used in some cases it couldn't (and shouldn't) handle. This was causing the inset shadow used to highlight panel buttons to not appear for buttons above a certain width. Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1646>