better colors

goofy-client/libs/vorgang/src/lib/vorgang-list-container/vorgang-list/vorgang-list-item/vorgang-next-frist-button/vorgang-next-frist-button.component.scss

@@ -13,5 +13,5 @@ button {
 }
 
 .red:not(.erledigt) {
-	color: mat-color($warnPalette);
+	color: mat-color($warnPalette, darker);
 }