You can change pretty much every column style from column "Style area". Like Text color, Background color, Column/Items Width, and many more. if you want to add your own style at your every column then, you have to follow those steps below:
- Select Column tab
select column tab for add custom column style. see this screenshot:
- expand or collapse column
you need to expand or collapse the column for found style area. this screenshot will make it easy
Now you Can Add your own style for each column.
See the screenshot -