Using MaterialPropertyBlock with Renderer for simple Sprite colorization

ColorizeWithMaterialPropertyBlock.cs

[RequireComponent(typeof(Renderer))]
public class ColorizeWithMaterialPropertyBlock : MonoBehaviour
{
    void Awake()
    {
        var selectedColor = Color.HSVToRGB(Random.Range(0f, 1f), 1f, 1f);

        var renderer = GetComponent<Renderer>();

        var propBlock = new MaterialPropertyBlock();
        renderer.GetPropertyBlock(propBlock);
        // Assign our new value.
        propBlock.SetColor("_Color", selectedColor);

        // Apply the edited values to the renderer.
        renderer.SetPropertyBlock(propBlock);
    }
}

CurveBasedColorsWithMaterialPropertyBlock.cs

[RequireComponent(typeof(Renderer))]
public class CurveBasedColorsWithMaterialPropertyBlock : MonoBehaviour
{
    public Color Color1, Color2;
    public float Speed = 1, Offset;

    public AnimationCurve Curve;

    private Renderer _renderer;
    private int m_colorID;
    private MaterialPropertyBlock _propBlock;

    void Awake()
    {
        _renderer = GetComponent<Renderer>();
          
        // Get the current value of the material properties in the renderer.
        _propBlock = new MaterialPropertyBlock();
        _renderer.GetPropertyBlock(_propBlock);

        // Get the property ID of "_Color"
        m_colorID = Shader.PropertyToID("_Color");

        // Setting the curve to loop
        Curve.postWrapMode = WrapMode.Loop;
    }

    void Update()
    {
        // Assign our new value.
        _propBlock.SetColor(m_colorID, Color.Lerp(Color1, Color2, Curve.Evaluate(Time.time * Speed)));
        // Apply the edited values to the renderer.
        _renderer.SetPropertyBlock(_propBlock);
    }
}

RotateColorsWithMaterialPropertyBlock.cs

[RequireComponent(typeof(Renderer))]
public class RotateColorsWithMaterialPropertyBlock : MonoBehaviour
{
    public Color Color1, Color2;
    public float Speed = 1, Offset;

    private Renderer _renderer;
    private int m_colorID;
    private MaterialPropertyBlock _propBlock;

    void Awake()
    {
        _propBlock = new MaterialPropertyBlock();
        _renderer = GetComponent<Renderer>();
        _renderer.GetPropertyBlock(_propBlock);

        m_colorID = Shader.PropertyToID("_Color");
    }

    void Update()
    {
        // Assign our new value.
        _propBlock.SetColor(m_colorID, Color.Lerp(Color1, Color2, (Mathf.Cos(Time.time * Speed + Offset) + 1) / 2f));
        // Apply the edited values to the renderer.
        _renderer.SetPropertyBlock(_propBlock);
    }
}