## 2024-12-08 v1.5

• Set xticks and xticklabels in case sankey plot is used with ax.axis("on")
• Add additional labelling feature to annotate nodes with their relative percentages. A variety of customisation options.
• Add value_duplicate = False to avoid redundant labelling.
• Add label_thresh to turn off labels for nodes below a certain size.
• Add value_fn, as alternative to label_format, which allows more generalised formatting of each value using a lambda function.
• Add values to node labels when label_values = True.
• Allow NaN or None when flows terminate.