diff --git a/templates/main.html b/templates/main.html
index d1f49cb..c909012 100644
--- a/templates/main.html
+++ b/templates/main.html
@@ -49,7 +49,7 @@
             <small class="text-muted">Fast - for small sites</small>
           </button>
 
-          <button class="btn btn-outline-success btn-lg mode-btn active" data-mode="advanced" type="button">
+          <button class="btn btn-outline-primary btn-lg mode-btn active" data-mode="advanced" type="button">
             <i class="fa-solid fa-gears fa-2x"></i>
             <div class="fw-semibold">Advanced</div>
             <small class="text-muted">CSS chains - multiple css/js files</small>