How to style a Datatable cell from a callback?

Given row and column_id of a Datatable, how can I access styling properties of a cell from a callback? what should the Output be?

For example, changing the background color of a specific cell.

Ok, I figured it out.

callback property is ‘style_data_conditional’ and the following should be return in the callback function (simplified example):

style_condition = [
        'if': {
            'column_id': 'col_name',
            'row_index': 0
        'backgroundColor': 'green',