diff --git a/Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/FGComponent.java b/Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/FGComponent.java
index df54fdde86..5ff8fb5e7d 100644
--- a/Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/FGComponent.java
+++ b/Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/FGComponent.java
@@ -224,8 +224,10 @@ public class FGComponent extends GraphComponent<FGVertex, FGEdge, FunctionGraph>
 		Color bgColor = options.getGraphBackgroundColor();
 		if (bgColor.equals(VisualGraphOptions.DEFAULT_GRAPH_BACKGROUND_COLOR)) {
 
-			// Give user notice when seeing the graph for a non-function.  Don't do this if the
-			// user has manually set the background color (this would require another option).
+			// Give user notice when seeing the graph for a non-function (such as an undefined 
+			// function), as this is typical for Ghidra UI widgets.   
+			// Don't do this if the user has manually set the background color (this would require 
+			// another option).
 			Function function = functionGraphData.getFunction();
 			if (function instanceof UndefinedFunction) {
 				viewer.setBackground(UNDEFINED_FUNCTION_COLOR);
diff --git a/Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/vertex/FGVertex.java b/Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/vertex/FGVertex.java
index aa91525a45..2ba6a0d9fb 100644
--- a/Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/vertex/FGVertex.java
+++ b/Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/vertex/FGVertex.java
@@ -93,15 +93,17 @@ public interface FGVertex extends VisualVertex {
 	public void clearColor();
 
 	/**
-	 * Signals to this vertex that it is associated with a group.  False implies that this vertex
-	 * is not and has not been part of a group.  True signals that this vertex is not currently
-	 * grouped, but that it has been part of a group and can be put back into its group form 
-	 * again.
+	 * Signals to this vertex that it is associated with a group
 	 * 
-	 * @param groupInfo True if this vertex is a associate with a group
+	 * @param groupInfo the new group info for this vertex; null if the vertex is no longer part
+	 *        of a group 
 	 */
 	public void updateGroupAssociationStatus(GroupHistoryInfo groupInfo);
 
+	/**
+	 * The group info for this vertex if it is in a group; null if not in a group
+	 * @return the group info or null
+	 */
 	public GroupHistoryInfo getGroupInfo();
 
 	/**
diff --git a/Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/SatelliteGraphViewer.java b/Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/SatelliteGraphViewer.java
index c178f7d2ac..71f04eb432 100644
--- a/Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/SatelliteGraphViewer.java
+++ b/Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/SatelliteGraphViewer.java
@@ -75,11 +75,18 @@ public class SatelliteGraphViewer<V extends VisualVertex, E extends VisualEdge<V
 		return new VisualVertexSatelliteRenderer<>();
 	}
 
+	/**
+	 * The options for this viewer
+	 * @param options the options
+	 */
 	public void setGraphOptions(VisualGraphOptions options) {
 		this.options = options;
 		optionsChanged();
 	}
 
+	/**
+	 * Called to signal that the options used by this viewer have changed
+	 */
 	public void optionsChanged() {
 		setBackground(options.getGraphBackgroundColor());
 	}