currently supported only by the @code{ly:optimal-breaking} algorithm.
Default: unset.
-@item page-breaking-between-system-padding
-@funindex page-breaking-between-system-padding
+@item page-breaking-between-system-spacing
+@funindex page-breaking-between-system-spacing
Tricks the page breaker into thinking that
-@code{between-system-padding} is set to something different than
-it really is. For example, if this variable is set to something
-substantially larger than @code{between-system-padding}, then the
+@code{between-system-spacing} is set to something different than
+it really is. For example, if
+@code{page-breaking-between-system-spacing #'padding} is set to something
+substantially larger than @code{between-system-spacing #'padding}, then the
page-breaker will put fewer systems on each page. Default: unset.
@item page-count