PaperFoldPervertedVersion/Assets/_Scripts/Board/Board.cs

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

public class Board : MonoBehaviour
{
    [SerializeField] private Image _boardImage;
    
    public void ChangeTheme(ThemeData themeData)
    {
        string changedThemeId = themeData.Id;

        if (changedThemeId != YanGamesSaveManager.GetUsedTheme())
            YanGamesSaveManager.SetUsedTheme(changedThemeId);

        _boardImage.sprite = themeData.Texture;
    }
}