TabbedPane:

- added icon-only tab mode, which shows tab icons but hides tab titles
- in "Show Hidden Tabs" popup menu, do not show text "x. Tab" if tab has icon but no title (issue #1062)

flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/components/FlatTabbedPane.java

@@ -484,7 +484,7 @@ public class FlatTabbedPane
 
 
 	// NOTE: enum names must be equal to allowed strings
-	public enum TabWidthMode { preferred, equal, compact }
+	public enum TabWidthMode { preferred, equal, compact, /** @since 3.7 */ iconOnly }
 
 	/**
 	 * Returns how the tabs should be sized.