sked/Assets/Script/UI/EquipSlotMark.cs

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

public class EquipSlotMark : MonoBehaviour
{
    public string slot = "Accessory";
    public Image icon;

    MapManager map;
    public void OnInitialized(MapManager mapManager)
    {
        if (map == null)
        {
            map = mapManager;
            map.player.character.skill.OnChangedInstall += OnChanged;
        }
    }
    void OnChanged(List<ItemData> items)
    {
        ItemData item = items.Find(a => a.type.Equals($"{slot}"));
        if (item == null)
        {
            icon.enabled = false;
            return;
        }

        icon.sprite = SpriteManager.Instance.SpriteGet("AtlasIngame", $"ui{item.idx}");
        icon.enabled = true;
    }
}