Before I added sections I had ticked off the "use admin theme for content editing" checkbox under Settings > Administrative Theme. After adding Sections Module, now the admin theme is selected as a section named "admin". I do not see any equivalent setting under the Admin Section. Now I realize I can create the same result by adding the paths for node add/edit to that section, however, RootCandy Administrative theme will only show the "Create Content" icon if that setting exists. So because that setting no longer exists, I cannot see any "Create Content" item.
Maybe this is a RootCandy issue, but maybe not... I would imagine it might affect other admin themes/module who expect that "use admin theme for content editing" to be available or set.