phpdocx 9.5 Premium licenses include options to customize series and values colors using addChart.
That scheme color is quite similar to Style 3 of phpdocx base template. The only option available to set colors with the addChart method is using the color option.
If you are using MS Word 2016 and you need to use a scheme or palette from this version of MS Word, we recommend you to use a custom empty base template and the CreateDocxFromTemplate class. Using this custom base template you can use the schemes from MS Word 2016: Style 7 is a blue style using this DOCX version.
Advanced and Premium licenses also include this function:
to create custom charts and change their values dynamically. This method allows to customize Word charts in templates, and with MultiMerge class merge the charts in other DOCX.