I'll just put some notes here for future possible use.
If I understand this correctly it is called date_navigator in the source. It is mentioned in src/modules/calendar/e-cal-base-shell-sidebar.c
The construction appears to be at cal_base_shell_sidebar_constructed(), line 750 at `widget = e_calendar_new ();`
The packing of the widgets appears to be done at line 757 at `gtk_paned_pack2 (GTK_PANED (container), widget, FALSE, FALSE);`
The alternatives include: decrease the spacing inside the widget, or allow the container to have a smaller width than the date_navigator widget.
I'll just put some notes here for future possible use.
If I understand this correctly it is called date_navigator in the source. It is mentioned in src/modules/ calendar/ e-cal-base- shell-sidebar. c
The construction appears to be at cal_base_ shell_sidebar_ constructed( ), line 750 at `widget = e_calendar_new ();`
The packing of the widgets appears to be done at line 757 at `gtk_paned_pack2 (GTK_PANED (container), widget, FALSE, FALSE);`
The alternatives include: decrease the spacing inside the widget, or allow the container to have a smaller width than the date_navigator widget.