Binary descriptions:

arctica-greeter: LightDM Arctica Greeter
arctica-greeter-dbgsym: debug symbols for arctica-greeter
arctica-greeter-guest-session: LightDM Arctica Greeter - Guest Session Support
arctica-greeter-remote-logon: LightDM Arctica Greeter - Remote Login Support
arctica-greeter-theme-debian: LightDM Arctica Greeter - Debian Theme