Whats the best way to override the spinner everywhere?

[lveillard]

Would be lovely to be able to do something like this in the Toat Container to override selectively the icons

 <ToastContainer
        icon={{
          loading: <CustomLoaderIcon />, 
          success: <CustomSuccessIcon/>
         //other icons remain unchanged
        }}
      />

Or in a closer way to existing code

  icon={(props) => {
                     if (props.isLoading) {
                       return <BlitzLoader />;
                     } else {
                       return props;
                     }
                   }}