google-cloud-platform

Is your feature request related to a problem? Please describe.
When using the Connector field type there's no way to set or display an image for each list item.

Describe the solution you'd like
An optional input field to add an image URL.

Describe alternatives you've considered
N/A

Additional context
N/A

https://github.com/googleapis/google-cloud-cpp/blob/472f20a660310973191fcb99b7fbca81ec843a47/google/cloud/grpc_options.h#L38-L47

This option only applies in certain libraries (the handwritten ones). We should make this clear.

This means documenting the option:

@note This option only applies to a few libraries. Check the service's `*Connection` documentation for details.

... and