Index: /applications/editors/josm/plugins/flatlaf/src/org/openstreetmap/josm/plugins/flatlaf/FlatDarkLaf.properties
===================================================================
--- /applications/editors/josm/plugins/flatlaf/src/org/openstreetmap/josm/plugins/flatlaf/FlatDarkLaf.properties	(revision 35572)
+++ /applications/editors/josm/plugins/flatlaf/src/org/openstreetmap/josm/plugins/flatlaf/FlatDarkLaf.properties	(revision 35572)
@@ -0,0 +1,21 @@
+#
+# License: GPL. For details, see LICENSE file.
+#
+
+#---- NamedColorProperty ----
+
+# AbstractTextComponentValidator
+JOSM.clr.general.Input\ validation\:\ error=$Component.error.focusedBorderColor
+JOSM.clr.general.Input\ validation\:\ error\ background=$Component.error.borderColor
+JOSM.clr.general.Input\ validation\:\ warning=$Component.warning.focusedBorderColor
+JOSM.clr.general.Input\ validation\:\ warning\ background=$Component.warning.borderColor
+JOSM.clr.general.Input\ validation\:\ valid=#62b543
+
+# ImageryProvidersPanel
+JOSM.clr.general.Imagery\ Background\:\ Default=darken(#499c54,10%)
+
+# MapStatus
+JOSM.clr.general.Status\ bar\ background=darken(#b8cfe5,50%)
+JOSM.clr.general.Status\ bar\ foreground=@foreground
+JOSM.clr.general.Status\ bar\ background\:\ active=darken(#aaff5e,40%)
+JOSM.clr.general.Status\ bar\ foreground\:\ active=@foreground
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 35571)
+++ /applications/editors/josm/plugins/flatlaf/src/org/openstreetmap/josm/plugins/flatlaf/FlatLafPlugin.java	(revision 35572)
@@ -10,4 +10,5 @@
 import com.formdev.flatlaf.FlatDarkLaf;
 import com.formdev.flatlaf.FlatIntelliJLaf;
+import com.formdev.flatlaf.FlatLaf;
 import com.formdev.flatlaf.FlatLightLaf;
 
@@ -29,4 +30,7 @@
         UIManager.installLookAndFeel("FlatLaf IntelliJ", FlatIntelliJLaf.class.getName());
         UIManager.installLookAndFeel("FlatLaf Light", FlatLightLaf.class.getName());
+
+        // enable loading of FlatLaf.properties, FlatLightLaf.properties and FlatDarkLaf.properties from package
+        FlatLaf.registerCustomDefaultsSource("org.openstreetmap.josm.plugins.flatlaf", getClass().getClassLoader());
     }