diff --git a/services/web-ui/public/data.jsx b/services/web-ui/public/data.jsx
index 3628ede..34bdfbc 100644
--- a/services/web-ui/public/data.jsx
+++ b/services/web-ui/public/data.jsx
@@ -19,6 +19,7 @@ const BINS = [
   { id: "b6", name: "Final deliverables", count: 8, icon: "package" },
 ];
 
+// generate a deterministic-ish thumb color
 function thumbGrad(seed) {
   const hues = [220, 280, 340, 30, 150, 200, 260, 320];
   const h1 = hues[seed % hues.length];