Expands the dimensions of @box by the given @scalar value.
If @scalar is positive, the #graphene_box_t will grow; if @scalar is negative, the #graphene_box_t will shrink.
a scalar value
return location for the expanded box
1.2
See Implementation
Expands the dimensions of @box by the given @scalar value.
If @scalar is positive, the #graphene_box_t will grow; if @scalar is negative, the #graphene_box_t will shrink.