apt install lightdm-settings numlockx

gsettings set org.gnome.desktop.interface color-scheme 'prefer-dark'

apt install qt5-style-kvantum
echo "export QT_STYLE_OVERRIDE=kvantum" >> ~/.xsessionrc

• https://github.com/Cloweling/cblack
• https://github.com/vinceliuice/vimix-gtk-themes

• https://github.com/cbrnix/Newaita
• https://github.com/gusbemacbe/suru-plus
• https://github.com/PapirusDevelopmentTeam/papirus-icon-theme