$ gsettings set org.gnome.nautilus.preferences always-use-location-entry true
or
$ dconf write /org/gnome/nautilus/preferences/always-use-location-entry true
$ sudo add-apt-repository ppa:daniruiz/flat-remix
$ sudo apt-get update
$ sudo apt-get install flat-remix-gtk flat-remix flat-remix-gnome
$ gsettings set org.gnome.shell.extensions.dash-to-dock autohide false
$ gsettings set org.gnome.shell.extensions.dash-to-dock dock-fixed false
$ gsettings set org.gnome.shell.extensions.dash-to-dock intellihide false
Install Dash to Panel from Gnome Extensions.
$ sudo apt install ttf-mscorefonts-installer
$ sudo fc-cache -f -v
$ sudo apt install fonts-firacode