Screw it, I added light

Assets/LightCycle.cs

@@ -0,0 +1,29 @@
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Rendering.Universal;
+
+public class LightCycle : MonoBehaviour
+{
+    public List<Color> colors;
+
+    public int targetColorIndex = 0;
+
+    public float speed = 1.0f;
+
+    private Light2D light2D;
+
+    void Start()
+    {
+        light2D = GetComponent<Light2D>();
+    }
+
+    void Update()
+    {
+        if (light2D.color == colors[targetColorIndex])
+        {
+            targetColorIndex = (targetColorIndex + 1) % colors.Count;
+        }
+
+        light2D.color = Color.Lerp(light2D.color, colors[targetColorIndex], Time.deltaTime * speed);
+    }
+}