diff --git a/ui.ipynb b/ui.ipynb
index d0a8315..646be2d 100644
--- a/ui.ipynb
+++ b/ui.ipynb
@@ -107,9 +107,9 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": " (venv) CUSUM time-series change detection",
    "language": "python",
-   "name": "python3"
+   "name": "venv-cumsum_change"
   },
   "language_info": {
    "codemirror_mode": {
@@ -121,7 +121,10 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.9"
+   "version": "3.8.10"
+  },
+  "voila": {
+   "theme": "dark"
   }
  },
  "nbformat": 4,