rning when some combinations of strata are not linked by any alluvia.</li>
<li>
<code><a href="../reference/ggalluvial-deprecated.html">to_lodes()</a></code> now has a <code>diffuse</code> parameter to join any original variables to the reformatted data by the <code>id</code> variable (alluvium). This makes it possible to assign original variables to aesthetics after reformatting, as illustrated in a new example.</li>
<li>
<code><a href="../reference/ggalluvial-deprecated.html">to_alluvia()</a></code> now h