I am trying to find a way to position the _arrow icon_ to the right of the panel inside a Collapse component but the API does not provide an option to do that. It would be great if Panel provided you the option to choose where to align the arrow icon.
<Collapse>
<Panel arrow="right" header="This is panel header 1" key="1">
...
</Panel>
</Collapse>
Just override the CSS.
antd will follow the Ant Design Specification, if you want something that against the specification, just override CSS.