public void setEdgeColor(String edgeType, String themeColorId) {
		checkEdgeType(edgeType);
		edgeColorMap.put(edgeType, new GColor(Objects.requireNonNull(themeColorId)));
		edgeRegistrations.put(edgeType, themeColorId);
	}
Sets the edge color using a theme color id. By using a theme color id, this property
is eligible to be registered as a tool option.
@param edgeType the edge type for which to set its color
@param themeColorId the theme color id of the color for this edge type
Ghidra/Framework/Graph/src/main/java/ghidra/service/graph/GraphDisplayOptions.java