diff --git a/js/controls.js b/js/controls.js
index 28eb235..f883466 100644
--- a/js/controls.js
+++ b/js/controls.js
@@ -99,7 +99,6 @@ function createCountControl(container, initialValue, max) {
     });
 
     count$.subscribe((value) => {
-        console.warn('count changed! ', value)
         text.innerHTML = (value === 1) ? '1 particle' : `${value} particles`;
     });
 
diff --git a/js/particle.js b/js/particle.js
index 12ab707..72ee3d0 100644
--- a/js/particle.js
+++ b/js/particle.js
@@ -157,8 +157,8 @@ Particle.prototype.updateLeader = function(particles) {
         return;
     }
 
+    // Head-to-head: particles see eachother but shouldn't both lead.
     if (this.leader === null && particles.length > 0) {
-        // Head-to-head: particles see eachother but shouldn't both lead.
         const candidates = particles
             .filter(v => v.leader ? (v.leader.id !== this.id) : true);
 
@@ -301,6 +301,8 @@ function updateVisionGrid(arc, config, grids) {
 function repaintContainer(node, arc, leaderTime) {
     node.style.left = `${arc.endX}px`;
     node.style.top = `${arc.endY}px`;
+
+    node.style.zIndex = (leaderTime > 0 ? 2000 : 2);
 }
 
 function repaintBody(node, arc, leaderTime) {
@@ -309,6 +311,8 @@ function repaintBody(node, arc, leaderTime) {
         : RAD.t360 - arc.theta;
 
     node.style.transform = `rotate(${rad + RAD.t45}rad)`;
+
+    node.style.border = (leaderTime > 0 ? '3px dotted #fff' : '');
 }
 
 function repaintCircle(node, arc) {