private boolean isInSplitPanel() {
		Container parent = component.getParent();
		while (parent != null && !(parent instanceof SplitPanel)) {
			parent = parent.getParent();
		}

		return (parent instanceof SplitPanel);
	}
Signals to use the GUI to make this header (and its provider) stand out from the rest.
Ghidra/Framework/Docking/src/main/java/docking/DockableHeader.java