MenuItem: fixed horizontal alignment of icons (issue #631)

CHANGELOG.md

@@ -26,6 +26,7 @@ FlatLaf Change Log
     #625)
   - Updated "Hiberbee Dark" and "Material Theme UI Lite" themes.
 - Styling: Fixed resolving of UI variables in styles that use other variables.
+- MenuItem: Fixed horizontal alignment of icons. (issue #631)
 
 
 ## 3.0

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatMenuItemRenderer.java

@@ -456,10 +456,11 @@ debug*/
 			return;
 
 		// center because the real icon may be smaller than dimension in iconRect
+		int x = iconRect.x + centerOffset( iconRect.width, icon.getIconWidth() );
 		int y = iconRect.y + centerOffset( iconRect.height, icon.getIconHeight() );
 
 		// paint
-		icon.paintIcon( menuItem, g, iconRect.x, y );
+		icon.paintIcon( menuItem, g, x, y );
 	}
 
 	protected static void paintText( Graphics g, JMenuItem menuItem,