To include social icons in Squarespace, there are a few ways to do it depending on the version of Squarespace you are using.
If you are using Squarespace 7.0, you can choose the Brine template family and enable social icons in your main navigation through the Site Styles section (source: Big Cat Creative).
If you are using Squarespace 7.1, you can add social icons by going to the Home Menu and clicking on Settings, then Social Links. From there, you can add your social profile’s URL or email address into the empty field and press Enter or Return (source: Selah Creative Co.).
If you want to customize the shape and color of the social icons, you can do so by going to the Design section and clicking on Custom CSS or Advanced, then Custom CSS, depending on the version of Squarespace you are using. From there, you can paste in the code to change the shape and color of the icons (source: Squarespace Help Center and Website Builder Insider).
Additional Information – How To Include Social Icons In Squarespace
Adding social icons to your Squarespace site is easy. All you need to do is click on the Settings menu and select Social Media Links. On the next screen, you can add the links you wish to display in your header. The social icons will appear in your site’s header. In the color theme option, you can select any color for the icon. You can also change the colors of the icons with CSS.
If you haven’t added social icons to your Squarespace site yet, you can easily connect your social media accounts with Squarespace. Adding these links to your navigation will make it easier for your visitors to find you online and engage with you. You can also connect your social media accounts with Squarespace by adding a special widget to your header. This will make your page look more professional. In the future, you’ll be able to integrate these social icons with your Squarespace website.
After you’ve added the social icons to your Squarespace website, you can choose which of them you want to use. Using the Social Block, you can link up to four different accounts, such as Facebook and Twitter. You can also use a font called Font Awesome to insert these icons into your Squarespace header. This will ensure that your visitors can easily access your social accounts with ease. This plugin is only available in the Brine family template, but you will need to be on the Business plan to access it.