How to install Setto Pro?
Go to the menu Appearance > Themes and click on the Add New button.
Click on the Upload Theme button.
Click on the Browse button and navigate to the unzipped theme package on your computer.
Look for a file called Setto.zip Click on it to select, then click OK.
Click on the Install Now button and wait until the installation is complete.
Click on the Activate link to activate the theme on your WordPress site.