public void setVerticesSelected(Collection<V> vertices) {
		gPickedState.clear();
		for (V v : vertices) {
			gPickedState.pick(v, true);
		}
	}
Sets the given vertex to be the focused vertex.  This will be the only focused vertex.

@param vertex the vertex
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/GraphComponent.java