Comments Plus - Feature Requests - Optional Tabs and WP Icon

I would like to be able to disable any of the tabs as a viable method.

For example, locking down the WordPress option, so the users choose one of the other 3 methods.

I also would like to see it optionally use a different logo for the WordPress tab so we could use the sites favicon or other branding as some people might think they need to use their WordPress.com account info.