`plotly.colors.validate_colors` fails for valid colors and passes for invalid colors

This function raises a PlotlyError for color formats that are valid within traces, but also does not raise errors for color formats that are not valid.

Example of a valid color string that does not pass: color = 'hsl(290, 100%, 50%)'. This works perfectly fine if you construct a trace with it, but fails the validation test because it does not contain "rgb" or "#".

import plotly.graph_objects as go
import plotly.colors as pc

color = 'hsl(290, 100%, 50%)'

# this works
trace = go.Scatter(x=[0], y=[0], marker=dict(color=color))
fig = go.Figure(trace)
fig.show()

# this does not
pc.validate_colors(color)  # this throws an error

Other cases:

• A valid, named color string throws an error
• The same named color within a list does not throw an error
• An invalid named color within a list does not throw an error, but it should

Examples below

import plotly.colors as pc

pc.validate_colors('red')  # throws PlotlyError

pc.validate_colors(['red'])
>>> ['red']

pc.validate_colors(['asdflkjlaskdg'])
>>> ['asdflkjlaskdg']

Perhaps this function is not meant to be used in this way? If so then more information in the docstrings could be helpful.

Plotly version 5.24.1.

Comience en el punto de entrada plotly.colors.validate_colors y reproduzca los ejemplos de HSL, named-color, valid-list e invalid-list del issue. Siga cómo se validan las entradas escalares y de lista. Se considera terminado cuando se acepten los colores válidos compatibles con los traces, se rechacen los colores no válidos de forma coherente y el uso previsto de la función quede claro en su documentación.