Straight table styling in Qlik Sense

[Supriya]

Hi,

I am wondering if we change the Header color and put borders for Straight Tables in Qlik sense.

I tried creating a visualization extension. However, it disabled the background formatting functions and the current selection color for the table also got changed from (green to white for selected values) due to extension.

Kindly help I  am new to Qlik Sense.