Ensure "RGB" array is always reshaped in "colour.plotting.models.RGB_chromaticity_coordinates_chromaticity_diagram_plot" definition.
@@ -582,6 +582,8 @@ RGB_Chromaticity_Coordinates_Chromaticity_Diagram_Plot.png
:alt: RGB_chromaticity_coordinates_chromaticity_diagram_plot
"""
+ RGB = as_float_array(RGB).reshape((-1, 3))
+
settings = {'uniform': True}
settings.update(kwargs)
