diff --git a/flatlaf-core/src/main/java/com/formdev/flatlaf/FlatDefaultsAddon.java b/flatlaf-core/src/main/java/com/formdev/flatlaf/FlatDefaultsAddon.java
index ef7c03d0..50a62554 100644
--- a/flatlaf-core/src/main/java/com/formdev/flatlaf/FlatDefaultsAddon.java
+++ b/flatlaf-core/src/main/java/com/formdev/flatlaf/FlatDefaultsAddon.java
@@ -23,11 +23,11 @@ import java.io.InputStream;
  *
  * Allows loading of additional .properties files from addon JARs.
  * {@link java.util.ServiceLoader} is used to load extensions of this class from addon JARs.
- *
+ * <p>
  * If you extend this class in a addon JAR, you also have to add a text file named
  * {@code META-INF/services/com.formdev.flatlaf.FlatDefaultsAddon}
  * to the addon JAR. The file must contain a single line with the class name.
- *
+ * <p>
  * See 'flatlaf-swingx' addon for an example
  *
  * @author Karl Tauber
@@ -37,6 +37,16 @@ public abstract class FlatDefaultsAddon
 	/**
 	 * Finds an addon .properties file for the given LaF class and returns
 	 * it as input stream. Or {@code null} if not found.
+	 * <p>
+	 * This default implementation finds addon .properties file for the given LaF class
+	 * in the same package as the subclass.
+	 * <p>
+	 * Override this method to load addon .properties files from other locations.
 	 */
-	public abstract InputStream getDefaults( Class<?> lafClass );
+	public InputStream getDefaults( Class<?> lafClass ) {
+		Class<?> addonClass = this.getClass();
+		String propertiesName = "/" + addonClass.getPackage().getName().replace( '.', '/' )
+			+ '/' + lafClass.getSimpleName() + ".properties";
+		return addonClass.getResourceAsStream( propertiesName );
+	}
 }
diff --git a/flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/FlatJideOssDefaultsAddon.java b/flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/FlatJideOssDefaultsAddon.java
index 1f2902a9..bcbf8169 100644
--- a/flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/FlatJideOssDefaultsAddon.java
+++ b/flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/FlatJideOssDefaultsAddon.java
@@ -43,10 +43,7 @@ public class FlatJideOssDefaultsAddon
 		LookAndFeelFactory.registerDefaultInitializer( FlatLaf.class.getName(), FlatJideUIDefaultsCustomizer.class.getName() );
 		LookAndFeelFactory.registerDefaultCustomizer( FlatLaf.class.getName(), FlatJideUIDefaultsCustomizer.class.getName() );
 
-		Class<?> addonClass = this.getClass();
-		String propertiesName = "/" + addonClass.getPackage().getName().replace( '.', '/' )
-			+ '/' + lafClass.getSimpleName() + ".properties";
-		return addonClass.getResourceAsStream( propertiesName );
+		return super.getDefaults( lafClass );
 	}
 
 	//---- class FlatJideUIDefaultsCustomizer ---------------------------------
diff --git a/flatlaf-swingx/src/main/java/com/formdev/flatlaf/swingx/FlatSwingXDefaultsAddon.java b/flatlaf-swingx/src/main/java/com/formdev/flatlaf/swingx/FlatSwingXDefaultsAddon.java
index e17f121a..b26894bb 100644
--- a/flatlaf-swingx/src/main/java/com/formdev/flatlaf/swingx/FlatSwingXDefaultsAddon.java
+++ b/flatlaf-swingx/src/main/java/com/formdev/flatlaf/swingx/FlatSwingXDefaultsAddon.java
@@ -16,26 +16,17 @@
 
 package com.formdev.flatlaf.swingx;
 
-import java.io.InputStream;
 import com.formdev.flatlaf.FlatDefaultsAddon;
 
 /**
  * SwingX addon for FlatLaf.
+ * <p>
+ * Finds SwingX addon .properties file for the given LaF class
+ * in the same package as this class.
  *
  * @author Karl Tauber
  */
 public class FlatSwingXDefaultsAddon
 	extends FlatDefaultsAddon
 {
-	/**
-	 * Finds SwingX addon .properties file for the given LaF class
-	 * in the same package as this class.
-	 */
-	@Override
-	public InputStream getDefaults( Class<?> lafClass ) {
-		Class<?> addonClass = this.getClass();
-		String propertiesName = "/" + addonClass.getPackage().getName().replace( '.', '/' )
-			+ '/' + lafClass.getSimpleName() + ".properties";
-		return addonClass.getResourceAsStream( propertiesName );
-	}
 }
diff --git a/flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/swingx/FlatSwingXDefaultsTestAddon.java b/flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/swingx/FlatSwingXDefaultsTestAddon.java
index 3ce87f7d..784afc9a 100644
--- a/flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/swingx/FlatSwingXDefaultsTestAddon.java
+++ b/flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/swingx/FlatSwingXDefaultsTestAddon.java
@@ -16,26 +16,17 @@
 
 package com.formdev.flatlaf.testing.swingx;
 
-import java.io.InputStream;
 import com.formdev.flatlaf.FlatDefaultsAddon;
 
 /**
  * SwingX addon for FlatLaf for testing.
+ * <p>
+ * Finds SwingX addon .properties file for the given LaF class
+ * in the same package as this class.
  *
  * @author Karl Tauber
  */
 public class FlatSwingXDefaultsTestAddon
 	extends FlatDefaultsAddon
 {
-	/**
-	 * Finds SwingX addon .properties file for the given LaF class
-	 * in the same package as this class.
-	 */
-	@Override
-	public InputStream getDefaults( Class<?> lafClass ) {
-		Class<?> addonClass = this.getClass();
-		String propertiesName = "/" + addonClass.getPackage().getName().replace( '.', '/' )
-			+ '/' + lafClass.getSimpleName() + ".properties";
-		return addonClass.getResourceAsStream( propertiesName );
-	}
 }