Screw it, I added light

Assets/Scripts/Game/PathShadow.cs

@@ -0,0 +1,27 @@
+using System.Collections.Generic;
+using System.Reflection;
+using UnityEngine;
+using UnityEngine.Rendering.Universal;
+
+namespace TilemapShadowCaster.Runtime
+{
+    public class PathShadow : ShadowCaster2D
+    {
+        static FieldInfo shapeFieldInfo = typeof(ShadowCaster2D).GetField("m_ShapePath",
+            BindingFlags.NonPublic | BindingFlags.Instance);
+
+        static FieldInfo shapeHashFieldInfo = typeof(ShadowCaster2D).GetField("m_ShapePathHash",
+            BindingFlags.NonPublic | BindingFlags.Instance);
+
+        static FieldInfo sortingLayersFieldInfo = typeof(ShadowCaster2D).GetField("m_ApplyToSortingLayers",
+            BindingFlags.NonPublic | BindingFlags.Instance);
+
+        internal void SetShape(List<Vector2> points,  int[] sortingLayers)
+        {
+            Vector3[] shapev3 = points.ConvertAll((point) => new Vector3(point.x, point.y)).ToArray();
+            shapeFieldInfo.SetValue(this, shapev3);
+            sortingLayersFieldInfo.SetValue(this, sortingLayers);
+            shapeHashFieldInfo.SetValue(this, (int) UnityEngine.Random.Range(0f, 10000000f));
+        }
+    }
+}