diff --git a/frontend/templates/admin/settings.html b/frontend/templates/admin/settings.html
index 7b96e1e..ba830ab 100644
--- a/frontend/templates/admin/settings.html
+++ b/frontend/templates/admin/settings.html
@@ -852,6 +852,18 @@ async function previewFlash() {
   }
 }
 
+function setFlashPreset(r, g, b, duration, flashes) {
+  document.getElementById('flash-r').value = r;
+  document.getElementById('flash-g').value = g;
+  document.getElementById('flash-b').value = b;
+  document.getElementById('flash-duration').value = duration;
+  document.getElementById('flash-dur-val').textContent = duration.toFixed(2);
+  document.getElementById('flash-count').value = flashes;
+  document.getElementById('flash-preview').style.background = `rgb(${r},${g},${b})`;
+  const hex = '#' + [r,g,b].map(v => v.toString(16).padStart(2,'0')).join('');
+  document.getElementById('flash-colorpicker').value = hex;
+}
+
 async function saveFlash() {
   const r = parseInt(document.getElementById('flash-r').value) || 255;
   const g = parseInt(document.getElementById('flash-g').value) || 200;