What's the difference between Manage and Modify permissions when sharing a group?

What's the difference between Manage and Modify permissions when sharing a group?

So I setup some resources and groups as well se some users and groups.  I then went to share a resource group with a user group and see I can choose from 3 different permission levels.

I set one up as Modify and one up as Manage.  I then went to view the resources in each group to see what the difference is, but I don't see any difference.  Can someone let me know what I get by selecting the Manage option when sharing over the Modify option?  These would be shared with users who are setup as Password Useres so maybe that negates any difference?

Thanks.




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