Quantity   Component name
1 × libxml2 - http://xmlsoft.org to save a setup config file (hardware info, pixel mapping, etc.)
1 × libbabl - http://gegl.org/babl to convert between colorspaces
1 × VLC - http://videolan.org if you like to send pixels to LEDs using the Video Lan Client (optional)
1 × GStreamer - http://gstreamer.freedesktop.org if you like to send pixels to LEDs using GStreamer applications (optional)
1 × linux niftyled has been successfully compiled for windows and mac, but it's not officially supported (yet)