void setArrowSelected(FlowArrow arrow, boolean selected) {
		if (selected) {
			selectedArrows.add(arrow);
		}
		else {
			selectedArrows.remove(arrow);
		}
	}
Those arrows that start at the current address
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/flowarrow/FlowArrowPlugin.java