diff --git a/frontend/src/crdt/YjsDocument.ts b/frontend/src/crdt/YjsDocument.ts
index f566479..f58c3fd 100644
--- a/frontend/src/crdt/YjsDocument.ts
+++ b/frontend/src/crdt/YjsDocument.ts
@@ -12,6 +12,10 @@ type Layer = {
   name: string;
   visible: boolean;
   locked: boolean;
+  color?: string;
+  lineType?: string;
+  transparency?: number;
+  sortOrder?: number;
 };
 
 type Element = {