diff --git a/ts/index.html b/ts/index.html
index d5ba974..fde17f7 100644
--- a/ts/index.html
+++ b/ts/index.html
@@ -135,16 +135,18 @@
         label: "Blink (animation)",
         make() {
           return new MonoDisplayFile({
-            elements_always: [{
-              type: ElementType.Animation,
-              width: W, height: H,
-              // updateInterval: 0 = advance every tick (25fps → ~400ms/frame at fps=25 with 2 frames)
-              updateInterval: 12, // every 13 ticks ≈ 500ms per frame at 25fps
-              frames: [
-                { pixels: new Uint8Array(W * H).fill(1) },
-                { pixels: new Uint8Array(W * H).fill(0) },
-              ],
-            }],
+            elements_always: {
+              flags: { drawFront: true, clearBuffer: true },
+              elements: [{
+                type: ElementType.Animation,
+                width: W, height: H,
+                updateInterval: 12, // every 13 ticks ≈ 500ms per frame at 25fps
+                frames: [
+                  { pixels: new Uint8Array(W * H).fill(1) },
+                  { pixels: new Uint8Array(W * H).fill(0) },
+                ],
+              }],
+            },
           }).toBuffer();
         },
       },