Make stuff not public if it doesn't need to be

Assets/Scripts/BouncyPanel.cs

@@ -2,9 +2,9 @@ using UnityEngine;
 
 public class BouncyPanel : MonoBehaviour
 {
-    public float frequency = 8f;
-    public float minSize = 1f;
-    public float maxSize = 1.1f;
+    [SerializeField] private float frequency = 8f;
+    [SerializeField] private float minSize = 1f;
+    [SerializeField] private float maxSize = 1.1f;
 
     void Update()
     {