Sprite Colors

using UnityEngine;

public class PlayerSprite : MonoBehaviour
{
    [SerializeField] float movementSpeed = 5f;
    [SerializeField] float jumpSpeed = 5f;

    //Use this this set all the color you need
    [SerializeField] Color[] myColors = new Color[]{};

    private SpriteRenderer spriteRenderer;

    Rigidbody2D myRigidbody;
    Animator myAnimator;

    //Movement string refs
    const string GET_HORIZONTAL_AXIS = "Horizontal";
    const string GET_JUMP = "Jump";
    const string RUNNING_ANIM = "IsPlayerRunning";
    const string JUMPPING_ANIM = "IsJumpping";

    //Input string refs
    const string INPUT_FIRE1 = "Fire1";
    const string INPUT_FIRE2 = "Fire2";
    const string INPUT_FIRE3 = "Fire3";
    const string INPUT_FIRE4 = "Fire4";

    // Start is called before the first frame update
    void Start()
    {
        myRigidbody = GetComponent<Rigidbody2D>();
        myAnimator = GetComponent<Animator>();
        spriteRenderer = GetComponent<SpriteRenderer>();
    }

    // Update is called once per frame
    void Update()
    {
        Run();
        Jump();
        FlipSprite();
        ColourChange();
    }

    private void Run()
    {
        float controlXAxis = CrossPlatformInputManager.GetAxis(GET_HORIZONTAL_AXIS);//Value is between -1 and 1
        Vector2 playerVelocity = new Vector2(controlXAxis * movementSpeed, myRigidbody.velocity.y);
        myRigidbody.velocity = playerVelocity;

        bool playerHorizontalMovement = Mathf.Abs(myRigidbody.velocity.x) > Mathf.Epsilon;
        myAnimator.SetBool(RUNNING_ANIM, playerHorizontalMovement);
    }

    private void Jump()
    {
        if(CrossPlatformInputManager.GetButtonDown(GET_JUMP))
        {
        Vector2 jumpVelocityToAdd = new Vector2(0f, jumpSpeed);
        myRigidbody.velocity += jumpVelocityToAdd;

        // bool playerVerticalMovement = Mathf.Abs(myRigidbody.velocity.y) > Mathf.Epsilon;
        //myAnimator.SetBool(JUMPPING_ANIM, playerVerticalMovement);
        }
    }

    private void FlipSprite()
    {
        bool playerHorizontalMovement = Mathf.Abs(myRigidbody.velocity.x) > Mathf.Epsilon;
        if(playerHorizontalMovement)
        {
            transform.localScale = new Vector2(Mathf.Sign(myRigidbody.velocity.x), 1f);
        }
    }

    private void ColourChange()
    {
        if (CrossPlatformInputManager.GetButtonDown(INPUT_FIRE1))
        {
            spriteRenderer.color = myColors[0];
        }
        else if (CrossPlatformInputManager.GetButtonDown(INPUT_FIRE2))
        {
             spriteRenderer.color = myColors[1];
        }
        else if (CrossPlatformInputManager.GetButtonDown(INPUT_FIRE3))
        {
             spriteRenderer.color = myColors[2];
        }
        else if (CrossPlatformInputManager.GetButtonDown(INPUT_FIRE4))
        {
             spriteRenderer.color = myColors[3];
        }
    }

}

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using UnityEngine;

public class Platforms : MonoBehaviour
{
    //Use this to set the platform color
    [SerializeField] Color platFormColor = Color.white;

    //Tag string ref
    const string PLAYER_TAG = "Player";

    private void Awake()
    {
        GetComponent<SpriteRenderer>().color = platFormColor;
    }

    private void OnCollisionEnter2D(Collision2D player)
    {
        if (player.gameObject.CompareTag(PLAYER_TAG))
        {
            var playerColor = player.transform.GetComponent<SpriteRenderer>().color;
            if (playerColor == platFormColor)
            {
                player.transform.SetParent(this.transform);
            }
        }
    }

    private void OnCollisionExit2D(Collision2D player)
    {
        if (player.gameObject.CompareTag(PLAYER_TAG))
        {
            player.transform.SetParent(null);
        }
    }
}