diff --git a/svg/door.toml b/svg/door.toml
index 5c20fb0..7e80e90 100644
--- a/svg/door.toml
+++ b/svg/door.toml
@@ -13,3 +13,11 @@ always_nest = true
 always_be_nested = false
 
 
+
+# If true, this indicates that the symbol nested on this
+
+# symbol’s nesting area should have its colors inverted.
+
+invert_nested = true
+
+