In the following example I'm using a text field with type='search'.

The 'clear' icon appears automatically. How can I change the styling of this icon or replace it with my own icon?
import SearchIcon from '@material-ui/icons/Search';
<TextField
placeholder="Search"
type="search"
variant="outlined"
fullWidth
size="small"
onChange={handleSearchFieldOnChange}
InputProps={{
startAdornment: (
<InputAdornment position="start">
<SearchIcon />
</InputAdornment>
),
}}
/>