<dl>
  <dt style="color: red">Heap Size</dt>
  <dd>Total size of <emph>megablocks</emph> allocated by the RTS</dd>
  <dt style="color: blue">Blocks Size</dt>
  <dd>Total size of <emph>blocks</emph> allocated by the RTS</dd>
  <dt style="color: green">Live bytes</dt>
  <dd>Total size of objects live on the heap (should match top of area pane)</dd>
</dl>

<p>Process memory usage (as reported by the OS) should correspond roughly to the <span style="color: red">heap size</span>,
except for data allocated throug