I think the plugin include the possibility with one check for rights, for a capability. You see in the source of the plugin, that he include the menu items, if the user have the capability edit_theme_options. That makes not so easy for you to change this in different roles. You can create custom roles, like with the plugin “Members” and change the capabilities on the role.
If you will only hide the areas, not check for the right on the different roles, then use the plugin “Adminimize“.
Also it is possible to hide via custom source and also it is possible to change capabilities via custom source, but not so easy as add the plugins and use it.