diff --git a/src/viewport-three/viewport-host.ts b/src/viewport-three/viewport-host.ts
index 62d1f25d..add290b5 100644
--- a/src/viewport-three/viewport-host.ts
+++ b/src/viewport-three/viewport-host.ts
@@ -527,6 +527,8 @@ const PATH_POINT_RADIUS = 0.15;
 const PATH_POINT_OUTLINE_RADIUS = 0.22;
 const PATH_POINT_HOVERED_SCALE = 1.22;
 const PATH_POINT_SELECTED_SCALE = 1.45;
+const PATH_ROAD_PREVIEW_COLOR = 0x5f5747;
+const PATH_ROAD_SHOULDER_PREVIEW_COLOR = 0x2d261d;
 const TERRAIN_BASE_COLOR = 0x708b57;
 const TERRAIN_HOVERED_COLOR = 0x89a765;
 const TERRAIN_SELECTED_COLOR = 0xe0c17f;