diff --git a/theme.json b/theme.json
index e5c86c2..2195144 100644
--- a/theme.json
+++ b/theme.json
@@ -263,7 +263,17 @@
           "fontSize": "var(--wp--preset--font-size--small)",
           "textTransform": "uppercase"
         }
-      }
+      },
+      "core/separator": {
+				"border": {
+					"color": "currentColor",
+					"style": "solid",
+					"width": "0 0 1px 0"
+				},
+				"color": {
+					"text": "var(--wp--preset--color--main-green)"
+				}
+			}
     },
     "elements": {
       "h1": {