Color Changing Script

using UnityEngine;

[RequireComponent(typeof(SpriteRenderer))]
public class ColorChanger : MonoBehaviour {

    /* Berkin AKKAYA */
    /* berkinakkaya.wixsite.com/blog */

    [Range(0.0f, 255.0f)]
    [SerializeField] float brightness = 60.0f;

    [Tooltip("Color Changing Speed")]
    [Range(0.0f, 0.2f)][SerializeField]
    float colorChangingSpeed;

    private bool increase; //Increase value (decrase if false)
    private float min, max, value;
    private SpriteRenderer sprite;

    #region Start and Update
    void Start(){
        sprite = GetComponent<SpriteRenderer>();
        SetBrightness();
    }

    void Update () {
        ChangeValueAutomatically();
        ChangeBackgroundColor();
    }
    #endregion

    #region Find Color
    Vector3 RGB{
        get{
            float percent = ((value * 100) / 16);
            Vector3 rgb;

            if(value < 0.16f){
                float x = max - (min * percent);
                rgb = new Vector3(x, min, max);
            }else if(value < 0.32f){
                percent -= 1;
                float y = min + (min * percent);
                rgb = new Vector3(min, y, max);
            }else if(value < 0.48f){
                percent -= 2;
                float z = max - (min * percent);
                rgb = new Vector3(min, max, z);
            }else if(value < 0.64f){
                percent -= 3;
                float x = min + (min * percent);
                rgb = new Vector3(x, max, min);
            }else if(value < 0.80f){
                percent -= 4;
                float y = max - (min * percent);
                rgb = new Vector3(max, y, min);
            }else if(value < 0.96f){
                percent -= 5;
                float z = min + (min * percent);
                rgb = new Vector3(max, min, z);
            }else
                rgb = new Vector3(max, min, max);

            return rgb;
        }
    }
    #endregion

    #region Work Automatically
    void ChangeBackgroundColor(){
        sprite.color = new Color(RGB.x, RGB.y, RGB.z);
    }

    void ChangeValueAutomatically(){
        if(value >= 1) increase = false;
        if(value <= 0) increase = true;

        if(increase) value += colorChangingSpeed * Time.deltaTime;
        else         value -= colorChangingSpeed * Time.deltaTime;
    }
    #endregion

    #region Set Brightness
    void SetBrightness(){
        max = brightness / 255;
        min = brightness / 255 / 2;
    }
    #endregion
}