diff --git a/README.rst b/README.rst
index c41b43d..6e25e31 100644
--- a/README.rst
+++ b/README.rst
@@ -6,6 +6,8 @@ This project uses Pelican (a static site generator) to produce HTML from ``.rst`
 
 Pelican is written in Python and uses Jinja2 template engine by default.
 
+The theme defaults to dark mode with a light mode toggle. Theme preference is saved to localStorage and persists across sessions.
+
 Need a new blog post entry?
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