diff --git a/resource/vditor/index.css b/resource/vditor/index.css
index 3aa8125..0973375 100644
--- a/resource/vditor/index.css
+++ b/resource/vditor/index.css
@@ -26,7 +26,7 @@ a {
 .vditor-toolbar__item .vditor-tooltipped[data-type="selectTheme"] {
     width: 55px;
     font-size: 14px;
-    color: var(--vscode-charts-red);
+    color: var(--vscode-charts-blue);
 }
 
 html {