Deprecated: Less_Functions::__construct(): Implicitly marking parameter $currentFileInfo as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/local88/new-document/fastestpro/source/function/lib/Less/Functions.php on line 12 Fastestpro Shopify Theme - Documentation
In the theme settings page, open the Template dropdown, choose Collections > Default Collection, you will be navigated to the settings panel of collection page.
In this panel, go to the Template > Product grid section, you will see all options relating to collection page:
