[Trisquel-users] Need help for changing filetype icon-image & pathbar in nautilus

[harveyjoymathews]

Hello,
I use ubuntu-tweak to allow direct typing path in nautilus instead of the  
folder-button like path bar. But, yesterday i ran janitor & bleachbit and now  
everything is reverted back. I switched the option "Use Location Entry  
instead of Pathbar" many times but no change.
Also, i keep the sidebar hidden, but its also being displayed whenever  
nautilus opens a folder.

Anyone can help me fix above problem and is there way to change the icon  
image corresponding to a filetype?

Thanks.