diff --git a/README.md b/README.md
index ab37f00..8772265 100644
--- a/README.md
+++ b/README.md
@@ -236,6 +236,7 @@ Here's an example file:
 - `SouthWest`
 - `West`
 - `NorthWest`
+- `Center`
 
 `outlineSize` ranges from `0` to `10`.