$grey-button-outline-color: color.scale($grey-foreground-color, $alpha: -95%);
$main-color: hsl(24, 90%, 50%);
-$main-color-lighter: lighten($main-color, 10%);
-$main-color-lightest: lighten($main-color, 40%);
+$main-color-lighter: color.adjust($main-color, $lightness: 10%);
+$main-color-lightest: color.adjust($main-color, $lightness: 40%);
$main-color-very-light: #fff5eb;
-$main-hover-color: lighten($main-color, 5%);
+$main-hover-color: color.adjust($main-color, $lightness: 5%);
$main-background-hover-color: #e9ecef;
$support-button: inherit;