System.ConsolePal.RefreshColors C# (CSharp) Method

        private static void RefreshColors(ref ConsoleColor toChange, ConsoleColor value)
        {
            if (((int)value & ~0xF) != 0 && value != Console.UnknownColor)
            {
                throw new ArgumentException(SR.Arg_InvalidConsoleColor);
            }

            lock (Console.Out)
            {
                toChange = value; // toChange is either s_trackedForegroundColor or s_trackedBackgroundColor

                WriteResetColorString();

                if (s_trackedForegroundColor != Console.UnknownColor)
                {
                    WriteSetColorString(foreground: true, color: s_trackedForegroundColor);
                }

                if (s_trackedBackgroundColor != Console.UnknownColor)
                {
                    WriteSetColorString(foreground: false, color: s_trackedBackgroundColor);
                }
            }
        }