CombineGraphics

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

[RequireComponent(typeof(CanvasRenderer))]
public class CombineGraphics : Graphic
{
    [SerializeField] private List<Graphic> _graphics;
    public override void CrossFadeColor(Color targetColor, float duration, bool ignoreTimeScale, bool useAlpha, bool useRGB)
    {
        foreach (Graphic graphic in _graphics)
            graphic.CrossFadeColor(targetColor, duration, ignoreTimeScale, useAlpha, useRGB);
    }
}