diff --git a/source/_dashboards/picture-elements.markdown b/source/_dashboards/picture-elements.markdown
index ffbc2c2a9de..d5fbc52029d 100644
--- a/source/_dashboards/picture-elements.markdown
+++ b/source/_dashboards/picture-elements.markdown
@@ -353,7 +353,7 @@ state_image:
   type: map
 filter:
   required: false
-  description: Default CSS filter.
+  description: "Default: `grayscale(100%)` when entity state is `off`. Set to `none` to remove this."
   type: string
 state_filter:
   required: false