diff --git a/colours.js b/colours.js
index c565707..1224d8f 100644
--- a/colours.js
+++ b/colours.js
@@ -3,8 +3,7 @@ import ColorScheme from 'color-scheme';
 export const get_colours = (basis) => {
 	const scheme = new ColorScheme;
 	const hexbasis = basis.toString(16).padStart(6, "0");
-	scheme.from_hex(hexbasis).scheme('analogic').variation('hard').distance(0.1);
-	console.log(scheme.colors());
+	scheme.from_hex(hexbasis).scheme("triade").variation("hard").distance(0.5);
 	return scheme.colors().map((cs) => parseInt('0x' + cs));
 }
 
diff --git a/gui.js b/gui.js
index 54cb0df..ac5e22c 100644
--- a/gui.js
+++ b/gui.js
@@ -16,7 +16,7 @@ class FourDGUI {
 		this.params = {
 			shape: this.link['shape'] || DEFAULT_SHAPE,
 			thickness: this.link['thickness'] || 1,
-			nodesize: this.link['nodesize'] || 0,
+			nodesize: this.link['nodesize'] || 2,
 			color: this.link['color'] || DEFAULT_COLOR,
 			background: this.link['background'] || DEFAULT_BG,
 			hyperplane: this.link['hyperplane'] || 2,
diff --git a/main.js b/main.js
index 6a6d808..f0d0143 100644
--- a/main.js
+++ b/main.js
@@ -32,7 +32,8 @@ document.body.appendChild( renderer.domElement );
 scene.background = new THREE.Color(0x808080);
 const material = new THREE.MeshStandardMaterial({ color: 0x3293a9 });
 const node_colours = get_colours(0x3293a9);
-console.log(node_colours);
+
+
 const node_ms = node_colours.map((c) => new THREE.MeshStandardMaterial({color: c}));
 
 const link_ms = [ material ];
diff --git a/polytopes.js b/polytopes.js
index 1894142..36f3026 100644
--- a/polytopes.js
+++ b/polytopes.js
@@ -314,7 +314,7 @@ function make_600cell_vertices() {
 	].flat();
 
 	for( const n of nodes ) {
-		n.label = label_vertex(n, coords, partition600);
+		n.label = label_vertex(n, coords, partition600) - 1;
 	}
 
 	for( const n of nodes ) {
@@ -329,12 +329,32 @@ function make_600cell_vertices() {
 	return nodes;
 }
 
+function get_node(nodes, id) {
+	const ns = nodes.filter((n) => n.id === id);
+	if( ns ) {
+		return ns[0]
+	} else {
+		return undefined;
+	}
+}
+
+function audit_link_labels(nodes, links) {
+	console.log("Link audit");
+	for( const l of links ) {
+		const n1 = get_node(nodes, l.source);
+		const n2 = get_node(nodes, l.target);
+		if( n1.label === n2.label ) {
+			console.log(`link ${l.id} joins ${n1.id} ${n2.id} with label ${n2.label}`);
+		}
+	}
+}
 
 
 
 export const cell600 = () => {
 	const nodes  = make_600cell_vertices();
 	const links = auto_detect_edges(nodes, 12);
+
 	return {
 		nodes: nodes,
 		links: links,