tabulator gradients (#7291)

Co-authored-by: Philipp Rudiger <prudiger@anaconda.com>

examples/reference/widgets/Tabulator.ipynb

@@ -534,6 +534,27 @@
  "styled"
  ]
  },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "You can style your tables with gradients using the [`.text_gradient`](https://pandas.pydata.org/docs/reference/api/pandas.io.formats.style.Styler.text_gradient.html) or [`.background_gradient`](https://pandas.pydata.org/docs/reference/api/pandas.io.formats.style.Styler.background_gradient.html#pandas.io.formats.style.Styler.background_gradient) methods, along with [named Matplotlib color maps](https://matplotlib.org/stable/gallery/color/colormap_reference.html).\n",
+ "\n",
+ "**Note:** Styling with gradients requires Matplotlib to be installed."
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "gradient_table = pn.widgets.Tabulator(style_df)\n",
+ "gradient_table.style.text_gradient(cmap=\"RdYlGn\", subset=[\"B\", \"C\"])\n",
+ "gradient_table.style.background_gradient(cmap=\"RdYlGn\", subset=[\"D\", \"E\"])\n",
+ "gradient_table"
+ ]
+ },
  {
  "cell_type": "markdown",
  "metadata": {},