Cannot Edit dconf-editor and gnome-terminal in general user mode!

Hi There:
I according to FreeBSD handbook to install gnome3 as my desktop.When I login FreeBSD with general user, I cannot edit dconf-editor, gnome terminal.

However, I login with root. I can edit dconf-editor and gnome terminal, but my changing cannot apply to general user.

I even try to change dconf-editor and gnome terminal's permissions, but it seems invalid!!!
I think maybe other application cannot edit in general user, because I even try edit tweak tool which cannot edit.

Can someone help deal with this problem! Thank you very much^^