If you want to change the special folder icons (xdg user directories), you'll have to change them by making a custom theme. They are set to a specific name which is provided by the theme, and based on which folders are set as your Music, Documents, Videos, etc… folders.
To set a custom icon name to use from the theme, for the ~/.wine/drive_c
folder for example, you can run the following in a terminal:
gvfs-set-attribute ~/.wine/drive_c metadata::custom-icon-name folder-wine
This should make Nautilus use the folder-wine
icon. However, this icon will not be used in GTK+ file selectors or other applications. To unset the custom icon name, you can run the following in a terminal:
gvfs-set-attribute -t unset ~/.wine/drive_c metadata::custom-icon-name folder-wine
Note, that if you've previously set a custom icon on the file, within Nautilus directly, you'll have to unset that icon. You can do this by opening the properties dialog for that file in Nautilus, clicking on the button with the icon on it, and choosing "Revert" in the file chooser dialog which opens up.
You can change icon theme with Ubuntu Tweak.
Install Faenza Icon Theme
Hit Ctrl+Alt+T to open terminal and run the following commands one by one:
sudo add-apt-repository ppa:tiheum/equinox
sudo apt-get update
sudo apt-get install faenza-icon-theme
Install Ubuntu Tweak:
After installation of Faenza run following commands in terminal to install "Ubuntu Tweak".
sudo add-apt-repository ppa:tualatrix/ppa
sudo apt-get update
sudo apt-get install ubuntu-tweak
How To Change Icon Theme With Ubuntu Tweak?
- Once installed Hit Super key (windows key) to open Unity dash and search for "ubuntu tweak" and open it.
- Go to tweak tab and click on "Themes" button.
- Hare you can easily change the icon theme
Best Answer
If you merge the icon theme you want with humanity and humanity-dark icon themes in /usr/share/icons you can change the theme. I'm using Faenza icons with Unity right now and it looks nice. Just remember to backup the Humanity folder first and rename it.