help ,icons doesn't work

[wild_tiger]

I have deleted the mime directory under /usr/share/icons/Humanity, and many files' icons have changed to the gnome style. Then I restored the mime directory back, and typed command sudo gtk-update-icon-cache /usr/share/icons/Humanity. But my action doesn't work. The files' icons remains the gnome style. Any advices will be appreciated.

[garyedwardjohnston]

does restarting your computer help?

[wild_tiger]

It doesn't work.