diff --git a/src/extra/index.html b/src/extra/index.html
new file mode 100644
index 0000000..1038372
--- /dev/null
+++ b/src/extra/index.html
@@ -0,0 +1,58 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  width="74"
+  height="20"
+  role="img"
+  aria-label="Samples: 0"
+>
+  <title>Samples: 0</title>
+  <linearGradient id="s" x2="0" y2="100%">
+    <stop offset="0" stop-color="#bbb" stop-opacity=".1" />
+    <stop offset="1" stop-opacity=".1" />
+  </linearGradient>
+  <clipPath id="r">
+    <rect width="74" height="20" rx="3" fill="#fff" />
+  </clipPath>
+  <g clip-path="url(#r)">
+    <rect width="57" height="20" fill="#555" />
+    <rect x="57" width="17" height="20" fill="#fe7d37" />
+    <rect width="74" height="20" fill="url(#s)" />
+  </g>
+  <g
+    fill="#fff"
+    text-anchor="middle"
+    font-family="Verdana,Geneva,DejaVu Sans,sans-serif"
+    text-rendering="geometricPrecision"
+    font-size="110"
+  >
+    <text
+      aria-hidden="true"
+      x="295"
+      y="150"
+      fill="#010101"
+      fill-opacity=".3"
+      transform="scale(.1)"
+      textLength="470"
+    >
+      Samples
+    </text>
+    <text x="295" y="140" transform="scale(.1)" fill="#fff" textLength="470">
+      Samples
+    </text>
+    <text
+      aria-hidden="true"
+      x="645"
+      y="150"
+      fill="#010101"
+      fill-opacity=".3"
+      transform="scale(.1)"
+      textLength="70"
+    >
+      0
+    </text>
+    <text x="645" y="140" transform="scale(.1)" fill="#fff" textLength="70">
+      0
+    </text>
+  </g>
+</svg>