Add multi-comp edit color for high-contrast dark theme

swing/src/net/sf/openrocket/gui/util/UITheme.java

@@ -679,6 +679,11 @@ public class UITheme {
                 return new Color(149, 186, 255, 127);
             }
 
+            @Override
+            public Color getMultiCompEditColor() {
+                return new Color(255, 165, 200);
+            }
+
             @Override
             public String getDefaultBodyComponentColor() {
                 return "150,175,255";