 visual tuning of intensity values via the
<code><a href="https://scales.r-lib.org/reference/transform_boxcox.html" class="external-link">scales::modulus_trans()</a></code> function (see Details). Negative numbers increase
the opacity of cells with low intensity values. Positive numbers decrease
the opacity of cells with low intensity values.</p></dd>


<dt>labels</dt>
<dd><p>character vector of layer labels for each plot. The default is
to not show labels.</p></dd>


<dt>return_type</dt>
<dd><p>character s