An option to modify delete icon?

Hello,

I would like to know whether mui-datatable has the option to modify the delete icon with a different icon[say 'Add' icon] from the toolbar when selecting rows.

Thanks,
Darshan

## Expected Behavior
Not exactly a bug, but basically on selecting rows I want the delete icon to be modified and have another button.

## Current Behavior
The current behavior shows the delete icon along with how many rows selected

## Steps to Reproduce (for bugs)
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## Your Environment

| Tech | Version |
|--------------|---------|
| Material-UI | |
| MUI-datatables | |
| React | |
| browser | |
| etc | |