apt install lightdm-settings numlockx

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

sudo apt install qt5ct
echo "QT_QPA_PLATFORMTHEME=qt5ct" >> ~/.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