We recently released a new HTML Editor Extra Value Type that allows you to add custom content! This might be helpful for storing images, documents, or any other custom (HTML) content on a People record or Involvement. 

On a related note, have you seen how easy it is to move Extra Values among various tabs now? If you have Extra Values stored on the Profile > Extra Values tab of a People record, you have the option to easily move them to the Involvement > Volunteer , Profile > Member, or Profile > Entry tabs for easier access. To further organize your Extra Values, you can also add headers and new sections to group the Extra Values however you’d like to organize them.