The setting scipts for Settings in game.

SettingSettings.cs

using UnityEngine;

namespace SweatyChair
{

	[CreateAssetMenu(fileName = "SettingSettings", menuName = "Sweaty Chair/Setting Settings")]
	public class SettingSettings : ScriptableObjectSingleton<SettingSettings>
	{

		[Tooltip("Manual screen width in Windows, 0 to disable, used for standalone only")]
		public int manualScreenWidthWin;
		[Tooltip("Manual screen width in macOS, 0 to disable, used for standalone only")]
		public int manualScreenWidthOsx = 1920;

		public int manualScreenWidth {
			get {
#if UNITY_STANDALONE_WIN
				return manualScreenWidthWin;
#elif UNITY_STANDALONE_OSX
				return manualScreenWidthOsx;
#else
				return 0;
#endif
			}
		}

#if UNITY_EDITOR
		[UnityEditor.MenuItem("Sweaty Chair/Setting Settings")]
		private static void OpenSettingSettings()
		{
			current.OpenAssetsFile();
		}
#endif

	}

}