qzdoom/wadsrc/static/zscript/menu/optionmenu.txt

class GameplayMenu : OptionMenu
{
	override void Drawer ()
	{
		Super.Drawer();

		String s = String.Format("dmflags = %d   dmflags2 = %d", dmflags, dmflags2);
		screen.DrawText (SmallFont, OptionMenuSettings.mFontColorValue,
			(screen.GetWidth() - SmallFont.StringWidth (s) * CleanXfac_1) / 2, 0, s,
			DTA_CleanNoMove_1, true);
	}
}

class CompatibilityMenu : OptionMenu
{
	override void Drawer ()
	{
		Super.Drawer();

		String s = String.Format("compatflags = %d  compatflags2 = %d", compatflags, compatflags2);
		screen.DrawText (SmallFont, OptionMenuSettings.mFontColorValue,
			(screen.GetWidth() - SmallFont.StringWidth (s) * CleanXfac_1) / 2, 0, s,
			DTA_CleanNoMove_1, true);
	}
}