Index: /applications/editors/josm/plugins/flatlaf/src/org/openstreetmap/josm/plugins/flatlaf/FlatLafPlugin.java
===================================================================
--- /applications/editors/josm/plugins/flatlaf/src/org/openstreetmap/josm/plugins/flatlaf/FlatLafPlugin.java	(revision 35540)
+++ /applications/editors/josm/plugins/flatlaf/src/org/openstreetmap/josm/plugins/flatlaf/FlatLafPlugin.java	(revision 35541)
@@ -25,8 +25,8 @@
         super(info);
         UIManager.getDefaults().put("ClassLoader", getClass().getClassLoader());
-        FlatDarculaLaf.install();
-        FlatDarkLaf.install();
-        FlatIntelliJLaf.install();
-        FlatLightLaf.install();
+        UIManager.installLookAndFeel("FlatLaf Darcula", FlatDarculaLaf.class.getName());
+        UIManager.installLookAndFeel("FlatLaf Dark", FlatDarkLaf.class.getName());
+        UIManager.installLookAndFeel("FlatLaf IntelliJ", FlatIntelliJLaf.class.getName());
+        UIManager.installLookAndFeel("FlatLaf Light", FlatLightLaf.class.getName());
     }