Allow Sankey Heatmap Customization

[ryanhamilton]

user-ab user-sit

below are some features that would be good to have customizability for:

Color scheme for Sankey chart and color scale for heatmap chart (red to yellow is not intuitive for all use cases).
Adding a title to the Sankey chart
Control decimal point formatting in sankey tooltip and heatmap display
In general, for all chart types, it would be good to have an autofit feature for titles. At the moment, it’s difficult to manually move the title to avoid overlap with the chart.

[ryanhamilton]

Sankey now shows editor and allows setting title, spacing and number formatter:

[ryanhamilton]

Decimal place formatter fixed when showing labels in heatmap.
More info needed on what is wanted when heatmap used. What color scheme would be wanted?