diff --git a/src/common.tsx b/src/common.tsx
index 285a8ff..bde6d5f 100644
--- a/src/common.tsx
+++ b/src/common.tsx
@@ -284,7 +284,7 @@ export function ActionItem(p: { action: ActionInfo, identifierSubstring?: string
             <script src="xterm-addon-fit/lib/xterm-addon-fit.js"></script>
           </head>
           <body style="overflow: hidden;">
-            <div id="root" style="width: 100vw;height: 100vh;position: absolute;left: 0px;top: 0px;"></div>
+            <div id="root" style="width: 100vw;height: 100vh;position: absolute;left: 0px;top: 0px; background-color: black"></div>
             <script>
             const terminalContainer = document.getElementById('root');
             
