diff --git a/README.md b/README.md
index 2ba74ab..a430538 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ Note that I may not implement all of these.
 - <label><input type="checkbox" checked />Configurable feed refresh frequency.</label>
 - <label><input type="checkbox" />Desktop notifications for significant events.</label>
 - <label><input type="checkbox" />Configurable notification threshold.</label>
-- <label><input type="checkbox" />Dark mode.</label>
+- <label><input type="checkbox" checked />Dark mode.</label>
 - <label><input type="checkbox" />Timestamp for last feed refresh.</label>
 - <label><input type="checkbox" />Display more event parameters from the feed (such as tsunami warning).</label>