Shadow columns: rate and streak

<script>
  import { createGrid } from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.28.0/lattice-grid.esm.min.js';
  import createLatticeAction from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.28.0/modules/svelte.esm.min.js';

  const lattice = createLatticeAction({ createGrid });

  const config = {
    rowKey: 'id',
    highlightOnChange: { duration: 500 },
    columns: [
      { field: 'symbol', title: 'Symbol', layout: { pin: 'start', width: 120 } },
      { field: 'price', title: 'Price', type: 'number' },
      { id: 'rate',  title: 'Per second', shadow: { of: 'price', kind: 'rate' }, type: 'number', format: { signed: true } },
      { id: 'since', title: 'Since move', shadow: { of: 'price', kind: 'sinceUpdate' }, type: 'duration' },
      { id: 'hist',  title: 'Recent',     shadow: { of: 'price', kind: 'history' }, cell: { render: 'line' } },
    ],
    rows,
  };
</script>

<svelte:head>
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.28.0/lattice-grid.min.css">
</svelte:head>

<div use:lattice={config} style="height: 460px"></div>