Redshift gui auto start

sudo apt purge gtk-redshift redshift-gtk redshift
sudo apt autoremove

Download RedshiftGUI from sourceforge and install

sudo dpkg -i RedshiftGUI-0.2.4-Linux-x86_64-Fixed.deb
cp -v /usr/share/applications/redshiftgui.desktop ~/.config/autostart/redshiftgui.desktop