diff --git a/interim/source_strings.yaml b/interim/source_strings.yaml
index 46918874..5e9c62d9 100644
--- a/interim/source_strings.yaml
+++ b/interim/source_strings.yaml
@@ -4154,6 +4154,7 @@ en:
       playground/theme:
         # playground:theme=*
         label: Theme
+        terms: '[translate with synonyms or related terms for ''Theme'', separated by commas]'
       plots:
         # plots=*
         label: Plots