'system'

The theme preference

1080

The width of the window

720

The height of the window

false

A flag to enable maximized mode

'160'

Songs bitrate (96, 160, 320kbps)

'pulseaudio'

Audio backend

true

A flag to enable gap-less playback

'default'

Alsa device (if audio backend is 'alsa')

0

Port to communicate with Spotify's server (access point). Setting to 0 (default) allows Spot to use servers running on any port.