docs: misc. updates

docs/source/user-guide/plotting.ipynb

@@ -658,7 +658,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "- In the python ecosystem, there are some libraries that provide great colormaps, such as [cmasher](https://cmasher.readthedocs.io>), [cmocean](https://matplotlib.org/cmocean/>), and [colorcet](https://colorcet.holoviz.org>).\n",
+    "- In the python ecosystem, there are some libraries that provide great colormaps, such as [cmasher](https://github.com/1313e/CMasher>), [cmocean](https://github.com/matplotlib/cmocean>), [colorcet](https://github.com/holoviz/colorcet>), and [cmcrameri](https://github.com/callumrollo/cmcrameri).\n",
     "\n",
     "- Although matplotlib is a powerful library, it is heavy and slow, and better suited for static plots. For interactive plots, libraries such as [Plotly](https://github.com/plotly/plotly.py>) or [Bokeh](https://github.com/bokeh/bokeh>) are popular.\n",
     "\n",

src/erlab/interactive/colors.py

@@ -96,6 +96,8 @@ def load_all(self) -> None:
             importlib.import_module("cmocean")
         if importlib.util.find_spec("colorcet"):
             importlib.import_module("colorcet")
+        if importlib.util.find_spec("cmcrameri"):
+            importlib.import_module("cmcrameri")
         if importlib.util.find_spec("seaborn"):
             importlib.import_module("seaborn")
 

src/erlab/plotting/colors.py

@@ -5,9 +5,11 @@
 
 In addition to the default `matplotlib
 <https://matplotlib.org/stable/tutorials/colors/colormaps.html>`_ colormaps, `cmasher
-<https://cmasher.readthedocs.io>`_, `cmocean <https://matplotlib.org/cmocean/>`_, and
-`colorcet <https://colorcet.holoviz.org>`_ packages can be installed to extend the
-available colormaps.
+<https://github.com/1313e/CMasher>`_, `cmocean
+<https://github.com/matplotlib/cmocean>`_, `colorcet
+<https://github.com/holoviz/colorcet>`_, and `cmcrameri
+<https://github.com/callumrollo/cmcrameri>`_ can be installed to extend the available
+colormaps.
 
 Colormap Normalization
 ----------------------