Cleanup internals and remove premature note box

Author: lukelbd

docs/api.rst

@@ -14,13 +14,6 @@ is deprecated (see :ref:`What's New <whats_new>`). However, proplot adheres to
 deprecated functionality will still work and issue warnings rather than errors
 until the first major release (version 1.0.0).
 
-.. important::
-
-   The color transformation functions like `to_rgba` and `scale_luminance` from
-   proplot < 0.10.0 can now be found as methods on the new `~proplot.colors.Color`
-   class. Note that old code that uses commands like ``pplt.to_rgba()`` and
-   ``pplt.scale_luminance()`` will still work (but result in a deprecation warning).
-
 .. important::
 
    The documentation for "wrapper" functions like `standardize_1d` and `cmap_changer`

proplot/axes/base.py

@@ -2724,8 +2724,8 @@ def set_prop_cycle(self, *args, **kwargs):
         # Includes both proplot syntax with positional arguments interpreted as
         # color arguments and oldschool matplotlib cycler(key, value) syntax.
         if len(args) == 2 and isinstance(args[0], str) and np.iterable(args[1]):
-            if _pop_props({args[0]: object()}, 'line'):
-                kwargs = {args[0]: args[1]}
+            if _pop_props({args[0]: object()}, 'line'):  # if a valid line property
+                kwargs = {args[0]: args[1]}  # pass as keyword argument
                 args = ()
         cycle = self._active_cycle = constructor.Cycle(*args, **kwargs)
         return super().set_prop_cycle(cycle)  # set the property cycler after validation

proplot/axes/plot.py

@@ -2273,11 +2273,26 @@ def _parse_cmap(
         return kwargs
 
     def _parse_cycle(
-        self, ncycle=None, *,
-        cycle=None, cycle_kw=None, cycle_manually=None, return_cycle=False, **kwargs
+        self, ncycle=None, *, cycle=None, cycle_kw=None,
+        cycle_manually=None, return_cycle=False, **kwargs
     ):
         """
         Parse property cycle-related arguments.
+
+        Parameters
+        ----------
+        ncycle : int, optional
+            The number of samples to draw for the cycle.
+        cycle : cycle-spec, optional
+            The property cycle specifier.
+        cycle_kw : dict-like, optional
+            The property cycle keyword arguments
+        cycle_manually : dict-like, optional
+            Mapping of property cycle keys to plotting function keys. Used
+            to translate property cycle line properties to scatter properties.
+        return_cycle : bool, optional
+            Whether to simply return the property cycle or apply it. The cycle is
+            only applied (and therefore reset) if it differs from the current one.
         """
         # Create the property cycler and update it if necessary
         # NOTE: Matplotlib Cycler() objects have built-in __eq__ operator
@@ -2348,11 +2363,11 @@ def _parse_level_count(
         symmetric : bool, optional
             Whether the resulting levels should be symmetric about zero.
 
-        Parameters
-        ----------
+        Returns
+        -------
         levels : list of float
             The level edges.
-        kwargs
+        **kwargs
             Unused arguments.
         """
         # Input args
@@ -2467,7 +2482,7 @@ def _parse_level_list(
         -------
         levels : list of float
             The level edges.
-        kwargs
+        **kwargs
             Unused arguments.
         """
         # Helper function that restricts levels
@@ -2621,7 +2636,7 @@ def _parse_level_lim(
         -------
         vmin, vmax : float
             The minimum and maximum.
-        kwargs
+        **kwargs
             Unused arguemnts.
         """
         # Parse vmin and vmax