private Color getDirectEdgeColor(FcgEdge e) {

		return directColor;

		/*// this allows us to make the edges fainter as the outward levels increase
		FcgVertex start = e.getStart();
		FcgVertex end = e.getEnd();
		FcgLevel sl = start.getLevel();
		FcgLevel el = end.getLevel();
		int level = Math.min(sl.getDistance(), el.getDistance());
		level = Math.min(level, 9);
		Color c = directColorWithAlpha[level];
		return c;
		*/
	}
Generates colors for a given {@link FcgEdge}
Ghidra/Features/GraphFunctionCalls/src/main/java/functioncalls/graph/renderer/FcgEdgePaintTransformer.java