Also add v4.5.0 in versions and keep README.md pointing to v4.5.0 so that there are no broken stuff.
Improvement to better understand how utilities class name are generated by the (_api.scss) base in the line of code below: `$property-class: if($property-class, $property-class, nth($properties, 1));` fc02932946/scss/mixins/_utilities.scss (L21)
fc02932946/scss/mixins/_utilities.scss (L21)