post_install() {
    echo ":: Backup lightdm.conf"
    cp /etc/lightdm/lightdm.conf /etc/lightdm/lightdm.conf.save
    echo ":: Set slick greeter as greeter session"
    sed -i '/greeter-session=/c\greeter-session=lightdm-slick-greeter' /etc/lightdm/lightdm.conf
}

post_remove() {
    echo ":: Restoring previous lightdm.conf"
    mv /etc/lightdm/lightdm.conf.save /etc/lightdm/lightdm.conf
}
