@Override
	public Icon getIcon(boolean expanded) {
		if (getChildren() == null || getChildren().isEmpty()) {
			return DISABLED_ICON;
		}
		return ENABLED_ICON;
	}
Increment the count of sequences which pass through this node by amount
@param amount amount to increment
Ghidra/Features/BytePatterns/src/main/java/ghidra/bitpatterns/info/FunctionBitPatternsGTreeNode.java