Unity Color Option Drawer with AppColor Enum Dictionary

ColorFieldDrawer.cs

using UnityEditor;
using UnityEngine;
using System.Collections.Generic;

#region Color Enum
enum AppColor
{
    Custom,
    White,
    Red,
    Green,
    Blue,
    Black,
}
#endregion


[CustomPropertyDrawer(typeof(Color))]
public class ColorOptionDrawer : PropertyDrawer
{
    private readonly Dictionary<AppColor, Color> colorOptions;

    public ColorOptionDrawer()
    {
        colorOptions = new Dictionary<AppColor, Color>
        {
            { AppColor.Red, new Color(1,0,0,1) },
            { AppColor.Green, new Color(0,1,0,1) },
            { AppColor.Blue, new Color(0,0,1,1) },
            { AppColor.White, new Color(1,1,1,1) },
            { AppColor.Black, new Color(0,0,0,1) }
        };
    }

    private AppColor selectedColorOption;

    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
    {
        EditorGUI.BeginProperty(position, label, property);

        if (property.propertyType == SerializedPropertyType.Color)
        {
            Rect dropdownPosition = new Rect(position.x, position.y, position.width - 100f, position.height);
            Color currentColor = property.colorValue;

            selectedColorOption = DetermineSelectedColorOption(currentColor);
            selectedColorOption = (AppColor)EditorGUI.EnumPopup(dropdownPosition, label, selectedColorOption);

            if (selectedColorOption == AppColor.Custom)
            {
                Rect colorFieldPosition = new Rect(position.x + dropdownPosition.width + 5f, position.y, 100f, position.height);
                property.colorValue = EditorGUI.ColorField(colorFieldPosition, property.colorValue);
            }
            else
            {
                if (colorOptions.ContainsKey(selectedColorOption))
                {
                    Color selectedColor = colorOptions[selectedColorOption];

                    Color selectedEnumColor = colorOptions[selectedColorOption];

                    property.colorValue = selectedEnumColor;

                }
                else
                {
                    EditorGUI.LabelField(position, "Invalid Color Option");
                }
            }
        }
        else
        {
            EditorGUI.LabelField(position, label.text, "Use AppColorDrawer with a Color field.");
        }

        EditorGUI.EndProperty();
    }


    private AppColor DetermineSelectedColorOption(Color color)
    {
        foreach (var kvp in colorOptions)
        {
            if (kvp.Value == color)
            {
                return kvp.Key;
            }
        }
        return AppColor.Custom;
    }
}