Added default node texture (all nodes are now clickable again :) ).

graph.js

@@ -80,22 +80,33 @@ function drawNode(node) {
 
     const cssobj = new THREE.CSS3DSprite(nodeDiv);
     cssobj.scale.set(0.25, 0.25, 0.25);
+    cssobj.position.set(0, -6, 0);
+    group.add(cssobj)
+
+    // Draw node circle image
+    const textureLoader = new THREE.TextureLoader();
+    const imageAlpha = textureLoader.load(plugin_path + 'datasets/images/alpha.png');
+    let imageTexture = null;
+
+    if ('image' in node) {
+        imageTexture = textureLoader.load(plugin_path + 'datasets/images/' + node.image);
+    } else {
+        imageTexture = textureLoader.load(plugin_path + 'datasets/images/default.jpg');
+    }
+
+    const material = new THREE.SpriteMaterial({map: imageTexture, alphaMap: imageAlpha, transparent: true,
+        alphaTest: 0.2, depthWrite:false, depthTest: false});
+    const sprite = new THREE.Sprite(material);
+    sprite.renderOrder = 999; // This may not be optimal. But it allows us to render the sprite on top of everything else.
 
     if ('image' in node) {
-        cssobj.position.set(0, -7, 0);
-
-        const textureLoader = new THREE.TextureLoader();
-        const imageTexture = textureLoader.load(plugin_path + 'datasets/images/' + node.image);
-        const imageAlpha = textureLoader.load(plugin_path + 'datasets/images/alpha.png');
-        const material = new THREE.SpriteMaterial({map: imageTexture, alphaMap: imageAlpha, transparent: true,
-            alphaTest: 0.2, depthWrite:false, depthTest: false});
-        const sprite = new THREE.Sprite(material);
-        sprite.renderOrder = 999; // This may not be optimal. But it allows us to render the sprite on top of everything else.
         sprite.scale.set(20, 20);
-        group.add(sprite)
+    } else {
+        sprite.scale.set(5, 5);
     }
 
-    group.add(cssobj)
+    group.add(sprite)
+
     return group;
 }