rfs to spacer ... maybe

[GeorgeTruth-dev]

@include rfs($spacer * .25, --spacer-1);
@include rfs($spacer * .5, --spacer-2);
@include rfs($spacer, --spacer-3);
@include rfs($spacer * 1.5, --spacer-4);
@include rfs($spacer * 2.5, --spacer-5);

$spacer-1: var(--spacer-1);
$spacer-2: var(--spacer-2);
$spacer-3: var(--spacer-3);
$spacer-4: var(--spacer-4);
$spacer-5: var(--spacer-5);

$spacers: (
0: 0,
1: $spacer-1,
2: $spacer-2,
3: $spacer-3,
4: $spacer-4,
5: $spacer-5,
);