diff --git a/src/converter/base.py b/src/converter/base.py
index 3794ea9..e74c45f 100644
--- a/src/converter/base.py
+++ b/src/converter/base.py
@@ -56,13 +56,13 @@ def base_layer(fig_node: dict) -> _BaseLayer:
     return {
         "do_objectID": utils.gen_object_id(fig_node["guid"]),
         "name": fig_node["name"],
-        "booleanOperation": -1,
+        "booleanOperation": BooleanOperation.NONE,
         "exportOptions": export_options(fig_node.get("exportSettings", [])),
         **positioning.convert(fig_node),  # type: ignore
         "isFixedToViewport": False,
         "isLocked": fig_node["locked"],
         "isVisible": fig_node["visible"],
-        "layerListExpandedType": 0,
+        "layerListExpandedType": LayerListStatus.COLLAPSED,
         "nameIsFixed": False,
         "resizingConstraint": resizing_constraint(fig_node),
         "resizingType": ResizeType.STRETCH,