toastr design

Hi

I am following the examples of toastr notifications at https://mdbootstrap.com/docs/jquery/javascript/notifications/i see there are 2 designs - the "bootstrap" example and "material" example - which look very different. The bootstrap design looks much slicker i think,but i am using the following code (which i got from the official toastr docs): https://github.com/CodeSeven/toastr which seem to generate the more simple "material" example design:

    toastr.options.positionClass = 'toast-top-full-width';
toastr.options.extendedTimeOut = 0; //1000;
toastr.options.timeOut = 0;
toastr.options.fadeOut = 250;
toastr.options.fadeIn = 250;


toastr.options.positionClass = 'toast-bottom-left';
toastr['error']('bottom left',' title 1');


toastr.options.positionClass = 'toast-bottom-right';
toastr['success']('bottom right',' title 2');

How can I generate (vis the JS/jquery) a dynamic toastr, that looks more like the bootstrap design, and can still be done using the success/info/warning flavor?

UPDATE: since posting the above question, 4.7.4 has been published, and i am testing with it. using code such as the above, gives me toastr items with the class "md-toast md-toast-success" which seems to give me the default MDB styles. how do i default to the"standard" styles, eg: class="toast toast-success" ?

Thanks!