diff --git a/docs/visuals/theming.md b/docs/visuals/theming.md
index 03750e4e..676c575b 100644
--- a/docs/visuals/theming.md
+++ b/docs/visuals/theming.md
@@ -29,6 +29,9 @@ bordercolor=0x444444ff
 # Drop shadow when dragging windows
 dropcolor=0x8FBA7C55
 
+# Split window border color in manual dwindle layout
+splitcolor=0xEB441EFF
+
 # Active window border
 focuscolor=0xc66b25ff