@Override
	public boolean isGrabbable(Component c) {
		if (!doGetComponent().isHeaderClick(c)) {
			return false; // only the header is grabbable
		}

		// the user cannot grab buttons, as they can press them
		return !(c instanceof JButton);
	}
To be restored when the component for this vertex is created.
Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/vertex/AbstractFunctionGraphVertex.java