cs contained in a music object.</li>
<li>Added support for auto-cropping of rendered sheet music when the output format is png.</li>
<li>Added transparent background png support.</li>
<li>Added a <code>colors</code> argument that takes a named list of color overrides for <code><a href="../reference/lilypond.html">lilypond()</a></code> and <code>render_*</code> functions.</li>
<li>Added MIDI file read support (requires optional <code>tuneR</code> installation) and a set of functions for inspecting and manipu