Is it possible to add a default content in a <textarea> field?

Hi everyone,

In a blueprint, I tried unsuccessfully to add the default option to a textarea field type.
The aim is to set a default content in a text field, but it seams not working.
Do you know a hack to do it?

AFAIK not all core fields implement the default prop.

You could create your own field which extends the textarea field if you really need it.

Thanks,
Indeed, Custom form fields seems the best way to do it.
I foolishly thought the default option worked everywhere.