diff --git a/README.md b/README.md
index eaed26c..ce6f45b 100644
--- a/README.md
+++ b/README.md
@@ -34,3 +34,10 @@ application:
 # Data from systems to datapoints
 
 `curl -d "$(time +'%F %T +02')" http://localhost:9000/entry/datapoint_name`
+
+# Theming
+
+* Add theme to select tag in `/views/pages/configuration.gotmpl`.
+* Create `/static/less/theme-<theme-name>.less`.
+* Create `/static/less/<theme-name>.less`.
+* Copy a theme directory under `/static/images/` to the new name.