what are the Theme Items need to take backup while moving to new webhosting

I am upgrading my webhosting service.
I have taken the back up of the wordpress.

Now I have query,

1. Do I need to reinstall the theme ?
2. How can I take the back of

a) theme relates setting ?
b) Ad sense position across the widget
c) Custom css file

Best way to move site is with “DUPLICATOR” plugin !

or …

You should have full backup of site via FTP

You should have full backup of MYSQL dbase

You should export the settings from theme panel; and save any custom code panels to text file; you should save any custom widgets text boxes to text file.