Allow for Customization of the Table Expandable Row Icon

• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

Allows one to use custom icons for displaying a table row that is expandable.

What does the proposed API look like?

import { Table, Icon } from 'antd';

const columns = [
  { title: 'Name', dataIndex: 'name', key: 'name' },
  { title: 'Age', dataIndex: 'age', key: 'age' },
  { title: 'Address', dataIndex: 'address', key: 'address' },
  { title: 'Action', dataIndex: '', key: 'x', render: () => <a href="javascript:;">Delete</a> },
];

const data = [
  { key: 1, name: 'John Brown', age: 32, address: 'New York No. 1 Lake Park', description: 'My name is John Brown, I am 32 years old, living in New York No. 1 Lake Park.' },
  { key: 2, name: 'Jim Green', age: 42, address: 'London No. 1 Lake Park', description: 'My name is Jim Green, I am 42 years old, living in London No. 1 Lake Park.' },
  { key: 3, name: 'Joe Black', age: 32, address: 'Sidney No. 1 Lake Park', description: 'My name is Joe Black, I am 32 years old, living in Sidney No. 1 Lake Park.' },
];

ReactDOM.render(
  <Table
    columns={columns}
    expandableRowIcon={<Icon type="right" />}
    expandedRowRender={record => <p style={{ margin: 0 }}>{record.description}</p>}
    dataSource={data}
  />,
  mountNode);

[hengkx]

I hope so too

expandableRowIcon={<Icon type="right" />}
collapsedRowIcon={<Icon type="down" />}

[nichitapasecinic]

is there any animation property to customize between expand and shrink row icon? in default example the animation is present, but when is being used custom icons the transition disappears