Displays currently playing song from your music player.
This module supports both MPRIS players and MPD servers.
Clicking on the widget opens a popout displaying info about the current song, album art
and playback controls.
in MPRIS mode, the widget will listen to all players and automatically detect/display the active one.

| `player_type` | `mpris` or `mpd` | `mpris` | Whether to connect to MPRIS players or an MPD server. |
| `format` | `string` | `{icon} {title} / {artist}` | Format string for the widget. More info below. |
| `truncate` or `truncate.mode` | `start` or `middle` or `end` | `null` | The location of the ellipses and where to truncate text from. Leave null to avoid truncating. Use the long-hand version if specifying a length. |
| `truncate.length` | `integer` | `null` | The maximum number of characters before truncating. Leave blank to let GTK automatically handle. |
| `icons.play` | `string` | `` | Icon to show when playing. |
| `icons.pause` | `string` | `` | Icon to show when paused. |
| `icons.volume` | `string` | `墳` | Icon to show under popup volume slider. |
| `host` | `string` | `localhost:6600` | [MPD Only] TCP or Unix socket for the MPD server. |
| `music_dir` | `string` | `$HOME/Music` | [MPD Only] Path to MPD server's music directory on disc. Required for album art. |