Bugfix for the color strip generation of the filter overlay.

display/overlays/filteroverlay.js

@@ -48,7 +48,10 @@ class FilterOverlay {
             jQuery(relation).click((event) => this.toggleVisibility(event));
 
             const colorStrip = Helpers.createDiv("rel-container", relation);
-            colorStrip.style.backgroundColor = this.graph.edgeColors[link];
+            colorStrip.style.backgroundColor =
+                this.type === "link"
+                    ? this.graph.edgeColors[link]
+                    : this.graph.nodeColors[link];
             colorStrip.style.width = 10 * chars + "px";
         }
     }