form interoperability

Mm, I'm trying to come up with a test document for forms, but I stumbled
upon this:


* ODF 1.1, 11.4.2 Control Implementation
A control may be given a control type attribute, which determines which
concrete rendition or implementation the user agent should instantiate.
For easy extensibility, the value of this attribute is a namespaced
token,
i.e., it is token using a namespace prefix, much like attributes in XML.


So the form:control-implementation would be like a hint, not required to
get the field rendered in a reassuring dull way, right ?

If so, shouldn't this be in the application-specific settings.xml
instead of being sprinkled out over the form ? In settings.xml, you
could then define something like "render all textarea's using a really
spiffy control"


Best regards,

Bart