Custom Themes Property to change Background Color for selected Rows in a Table Visual

Dear group members,

I'm currently working on my own themes in Power BI.

The JSON code for the table visual (TableEx) is particularly interesting for me. I'm looking for a property that will allow me to change the background and font color of selected rows in a table. I've attached a small example to make it clear what I mean. In this table I have selected three rows, which are then highlighted in light grey. I would like to change this, but unfortunately I haven't found anything in my search for the right property. I would like to change that because the light gray is very similar to the gray from the Hover Over effect. This can easily lead to confusion, especially when used on an IPad.

Does anyone know if there is a property and if so what is the JSON property ?

I'm grateful for every hint.

Thanks and best regards

Martin Beering