Looking for logging into the Gnome 3 Icon site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Gnome 3 Icon site. After that you can login as usual with your login credentials.
https://help.gnome.org/users/gnome-help/stable/user-changepicture.html.en
https://www.gnome-look.org/browse/cat/132/
https://mike632t.wordpress.com/2016/05/28/gnome-3-customizing-the-login-screen/
https://github.com/ubuntu/yaru/issues/129
https://askubuntu.com/questions/10024/how-do-i-change-the-gdm-login-window-top-icon
https://www.linuxquestions.org/questions/linux-desktop-74/changing-launcher-icons-in-gnome-3-a-873858/
https://unix.stackexchange.com/questions/310923/how-to-customize-gnome-login-screen-in-debian
https://forums.fedoraforum.org/showthread.php?280639-Icons-and-images-disappeared-can-t-login-in-gnome-shell
https://www.heise.de/newsticker/meldung/Linux-Desktop-Gnome-3-30-Performance-Verbesserungen-und-Desktop-Icons-4155171.html
https://kofler.info/aus-gnome-mach-unity/
https://superuser.com/questions/941940/move-disable-legacy-icon-bar-from-bottom-left-in-gnome-3-16
https://addons.videolan.org/p/1137261/
https://www.zdnet.com/article/how-to-customise-your-linux-desktop-gnome-3/