SimpleSpriteColor.cs

using System;
using JetBrains.Annotations;
using UnityEngine;

namespace Assets.Scripts.Utility
{
    [RequireComponent(typeof(SpriteRenderer))]
    [RequireComponent(typeof(RectTransform))]
    public sealed class SimpleSpriteColor : MonoBehaviour
    {
        public Color Color = Color.white;

        private SpriteRenderer _renderer;
        private RectTransform _transform;

        [UsedImplicitly]
        private void Start()
        {
            _transform = GetComponent<RectTransform>();
            _renderer = GetComponent<SpriteRenderer>();
            _renderer.sprite = Sprite.Create(WhiteTexture, new Rect(0, 0, Width, Height), new Vector2(0.5f, 0.5f), 1);
            _renderer.color = Color;
        }

        private float Width => _transform.rect.width;
        private float Height => _transform.rect.height;

        private Texture2D WhiteTexture
        {
            get
            {
                float width = Width;
                float height = Height;

                Texture2D whiteTexture = Texture2D.whiteTexture;
                whiteTexture.Resize((int)Math.Ceiling(width), (int)Math.Ceiling(height));
                for (int y = 0; y < height; ++y)
                {
                    for (int x = 0; x < width; ++x)
                    {
                        whiteTexture.SetPixel(x, y, Color.white);
                    }
                }

                whiteTexture.wrapMode = TextureWrapMode.Repeat;
                whiteTexture.Apply();

                return whiteTexture;
            }
        }
    }
}