Fix odd color negative -> ?

src/main/java/com/volmit/iris/util/plugin/VolmitSender.java

@@ -224,7 +224,7 @@ public class VolmitSender implements CommandSender {
     }
 
     public static String pulse(double speed) {
-        return Form.f(invertSpread((((getTick() * 15D * speed) % 1000D) / 1000D)), 3).replaceAll("\\Q,\\E", ".");
+        return Form.f(invertSpread((((getTick() * 15D * speed) % 1000D) / 1000D)), 3).replaceAll("\\Q,\\E", ".").replaceAll("\\Q?\\E", "-");
     }
 
     public static double invertSpread(double v) {