how to use bool from another script in if statment?

i have a script that i want to use another scripts bool in an if statement. ive managed to get my code to have no errors but its not working how i want it to. my first script (with the bool) is:

 public class ActionManager : MonoBehaviour {
     public bool Switch;
     public float seconds = 1;
     public GameObject AttackPrefab;
     // Use this for initialization
     void Start () {
     Switch = false;
     Physics2D.IgnoreLayerCollision (9, 8, true);
 
     
     }
     
     // Update is called once per frame
     void Update () {
         //makes attack active on fire1
         if (Input.GetButtonDown ("Fire1"))
                         
 {
             AttackPrefab.SetActive(true);
 
 }
         //if active,
         if (AttackPrefab.activeSelf) 
 {
         // count down
         seconds -= 2 * Time.deltaTime;
 }
         //if seconds are less than zero
         if (seconds <= 0) 
 {
         //set attack active to false
         AttackPrefab.SetActive (false);
         seconds = 1;
 }
         if (Input.GetButtonDown ("Fire2")) {
             Switch = true;
             print ("switch!");
                         Physics2D.IgnoreLayerCollision (9, 10, true);
                         Physics2D.IgnoreLayerCollision (9, 8, false);
             
                 } else if (Input.GetButtonUp ("Fire2")) {
             Switch = false;
             print ("unswitch!");
                         Physics2D.IgnoreLayerCollision (9, 10, false);
                         Physics2D.IgnoreLayerCollision (9, 8, true);
 
                 }
         }
 }

i want to use the bool Switch in this script:

 sing UnityEngine;
 using System.Collections;
 
 public class PlatformBackShader : MonoBehaviour {
 
     public GameObject player;
     private ActionManager Manager;
 
 
     // Use this for initialization
     void Start () {
     Manager = player.GetComponent<ActionManager>();
 
     
     }
     
     // Update is called once per frame
     void Update () {
         if (Manager.Switch == true);{
             print ( "it worked!" );
 }
 }
 }

ive been searching for so long how to do this but i cant seem to get it right :(. what i want to do is change the color of a platform when the bool Switch is true. seems simple right?

thanks guys!