There is considerable debate among practicing professional physicists
about whether there is such a thing as empty space. In the
case of the space which contains this locution,
it is safe to say that it is definitely not empty but that
it may as well be for all of the useful information that can
be gleaned from it.
In any case, (relatively) empty space is often colorless,
while this particular space is rendered in attractive
lightsalmon and lightyellow hues.
A significant distinction between this space and
empty space is that this space definitely exists.
And, unlike many other spaces, it exists for a reason.
It exists to fill up a region that would otherwise be left empty.
Voids are unsightly and can attract dust, while attractive
lightyellow spaces add esthetic appeal to any page.