diff --git a/public/app.js b/public/app.js
index bb2b26e..1660e51 100644
--- a/public/app.js
+++ b/public/app.js
@@ -2630,8 +2630,11 @@ function drawnSlots(p) {
 // What's in each slot, as last reported, under the drawing.
 function loadedHtml(p) {
   if (!p.loaded) return p.id ? '<p class="form-hint">Nothing reported yet — “Test & sync” to read it.</p>' : '';
-  // The tracked spool in that slot names the colour; otherwise the nearest Bambu colour.
+  // A tagged spool is Bambu's, so its colour has a name: from the tracked spool,
+  // or the Bambu colour it matches. An untagged one could be any brand, so it
+  // gets the colour the printer reports and nothing more.
   const colourName = (t) => {
+    if (!t.tagged) return t.colour || '';
     const s = spools.find((x) => x.ams_slot === `${p.serial}/${t.unit == null ? 'ext' : t.unit}/${t.slot == null ? 0 : t.slot}`);
     return (s && s.colour) || (t.colour ? paletteName(t.colour, t.material) : '') || '';
   };