get theme colours from engine instead of storing reference to theme in module

Assets/Desert/Runtime/Puzzle B/PuzzleB.cs

@@ -0,0 +1,27 @@
+using System.Collections.Generic;
+using EscapeRoomEngine.Engine.Runtime.Modules;
+using JetBrains.Annotations;
+using NaughtyAttributes;
+using UnityEngine;
+
+namespace EscapeRoomEngine.Desert.Runtime.Puzzle_B
+{
+    public class PuzzleB : StatePuzzle
+    {
+        [ValidateInput("CorrectRotatorCount")]
+        public List<Transform> rotators;
+
+        protected override void StatesUpdate()
+        {
+            base.StatesUpdate();
+
+            for (var i = 0; i < stateCount; i++)
+            {
+                rotators[i].localRotation = Quaternion.AngleAxis(states[i], Vector3.up);
+            }
+        }
+
+        [UsedImplicitly]
+        private bool CorrectRotatorCount(List<Transform> list) => list != null && list.Count == stateCount;
+    }
+}