diff --git a/README.md b/README.md
index 54ef112..5375759 100644
--- a/README.md
+++ b/README.md
@@ -185,6 +185,7 @@ Values:
 set -g @catppuccin_window_current_color "#{thm_orange}" # text color
 set -g @catppuccin_window_current_background "#{thm_bg}"
 ```
+Note that color and background fields are swapped when `@catppuccin_window_current_fill` is set to "all".
 
 Values:
 - color - a theme color (`#{thm_<color>}`) or a hexadecimal color value