Hi,
I am using striped table style and it works well with responsive table when applying as your demo
https://preview.keenthemes.com/html/metronic/docs/general/datatables/advanced#responsive

In this, expand/collapse buttons seem like secondary background.

I want to implement the same style for expand/collapse buttons in a sub datatable. However, your demo is applying light style for them which is blurred on striped table
https://preview.keenthemes.com/html/metronic/docs/general/datatables/subtable

Actually, I have tried to combine btn-secondary class & btn-active-light-primary but it does not work. The priority of btn-secondary is higher than that of btn-active-light-primary.

Could you support a demo for sub datatable with striped style so that I can follow?

Thanks