Add a color palette to a macro

[weaam7]

Hello,

I created a macro that generates a notebook containing any specific chart code,

I want to add more customization, such as adding a color palette for the user to choose categories colors.

Is there a possibility for that? and how?

I read https://doc.dataiku.com/dss/latest/plugins/reference/charts-elements.html but it is not that detailed.

Thank you!

[weaam7]

Also,

is there a way to get unique column values in a plugin? 

[weaam7]

-----------Detailed--------

Like dataiku dataset_column parameter, I want to access unique column values for the user to choose color for each category