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Continue to ChatFedora Linux : Change user icon in GDM login https://mamchenkov.net/wordpress/2019/03/20/fedora-linux-change-user-icon-in-gdm-login/
Fedora Linux : Change user icon in GDM login https://mamchenkov.net/wordpress/2019/03/20/fedora-linux-change-user-icon-in-gdm-login/