diff --git a/src/components/Thumbnail.jsx b/src/components/Thumbnail.jsx
index b5093d5..bcee00f 100644
--- a/src/components/Thumbnail.jsx
+++ b/src/components/Thumbnail.jsx
@@ -116,7 +116,7 @@ export default function Thumbnail({ diagram, i, zoom, theme }) {
                     >
                       <div className="flex items-center justify-start">
                         <div
-                          className={`w-[6px] h-[6px] bg-[#2f68ad] opacity-80 z-50 rounded-full me-2`}
+                          className={`w-[6px] h-[6px] bg-[#2f68adcc] rounded-full me-2`}
                         ></div>
                         <div>{f.name}</div>
                       </div>