go to http://www.pinvoke.net/default.aspx/dwmapi.DwmSetColorizationParameters

    private static extern void DwmSetColorizationParameters(ref DWM_COLORIZATION_PARAMS parameters,bool unknown);

    private static extern void DwmSetColorizationParameters(ref DWM_COLORIZATION_PARAMS parameters,bool unknown);

        DwmSetColorizationParameters(ref temp, false);