Updated documentation for Confirm component

docs/List.md

@@ -364,7 +364,7 @@ export default ResetViewsButton;
 
 **Tip**: `<Confirm>` text props such as `title` and `content` are translatable. You can pass use translation keys in these props.
 
-**Tip**: You can customize the text of the two `<Confirm>` component buttons using the `cancel` and `confirm` prop which accepts translation keys too.
+**Tip**: You can customize the text and icon of the two `<Confirm>` component buttons using the `cancel` and `confirm` prop which accepts translation keys too and the `ConfirmIcon` and `CancelIcon` prop which accepts a SvgIcon type.
 
 **Tip**: React-admin doesn't use the `<Confirm>` component internally, because deletes and updates are applied locally immediately, then dispatched to the server after a few seconds, unless the user chooses to undo the modification. That's what we call optimistic rendering. You can do the same for the `ResetViewsButton` by setting `undoable: true` in the last argument of `useUpdateMany()`, as follows:
 

packages/ra-ui-materialui/src/layout/Confirm.js

@@ -45,6 +45,8 @@ const useStyles = makeStyles(theme => ({
  *     content="Are you sure you want to delete this item?"
  *     confirm="Yes"
  *     confirmColor="primary"
+ *     ConfirmIcon=ActionCheck
+ *     CancelIcon=AlertError
  *     cancel="Cancel"
  *     onConfirm={() => { // do something }}
  *     onClose={() => { // do something }}