Show Node Types chart use different color for all types

Problem/Motivation

I have added a "Show Node Types" chart to a dashboard, but all the node types appear as the same color, making the chart less helpful. It would be fantastic if each node type displayed as a different color.

Steps to reproduce

Add a node types chart to a dashboard. As an example, choose "Pies" as the chart type. Every slice will be the same color regardless of the colormap chosen.

Proposed resolution

Use a different color for each distinct node type. Potentially allow configuration of the colors.