Katz, scale aligned to -20 dBFS, rise/fall times and color schema
according to spec.</li>
<li><dfn>K14</dfn>: Same as K20 with scale aligned to -14 dBFS.</li>
+ <li><dfn>K12</dfn>: Same as K20 with scale aligned to -12 dBFS (since 3.5.143).</li>
<li><dfn>Peak + RMS</dfn>: standard RMS, customizable via
<kbd class="menu">Edit > Preferences > GUI > Metering</kbd></li>
</ul>