diff --git a/user_config/usr/share/utop/stylesheet.css b/user_config/usr/share/utop/stylesheet.css
index 4541f75..99b5cfe 100644
--- a/user_config/usr/share/utop/stylesheet.css
+++ b/user_config/usr/share/utop/stylesheet.css
@@ -22,3 +22,8 @@ popover > box,
 .clock-widget * {
     font-size: 20px;
 }
+
+.active-category {
+    background: rgba(0, 124, 0, 0.64);
+    color: rgba(255, 255, 255, 1);
+}
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