This morning, I submitted a pull request on GitHub to bring the default Power BI color palette to Charticulator. While Charticulator can export a Power BI custom visual .pbiviz file, there are no color-related Format options in Power BI. Any color choices must occur in Charticulator before exporting (you currently cannot change them later in Power BI). As a result, having the Power BI default palette easily accessible in Charticulator could help bring more consistency between the two tools.
I think this is a good idea. Consistency between products allows people to combine them more effectively.