The template marked Default cannot be deleted: its trash button is disabled with the hint Default template can't be deleted — mark another as default first, and the server answers Cannot delete the default template — mark a different one as default first. Other templates are deleted after you confirm Delete "name"? This cannot be undone.; the card fades out. In the current version there is no button in the admin panel to mark a different template as the default, so the default stays the one provided with your account — ask Sprwt support if you need it changed. You can still edit the default template's content freely.