Steps:
From your Shopify admin, go to Online Store -> Themes.
Find the theme that you want to edit, and then click Customize.
Choose Collection from the dropdown window. After that, scroll to Sidebar and you can make changes in editor for other elements:
Show Sidebar?
Enable to show sidebar. Note that blocks rather than Custom Collection must be added for the sidebar to appear.
Position
Select the position of the side to be either to the Left or Right. (For Vertical Type and for sidebar on Mobile)
Select Font Type
Select the font family for the title of the sidebar.
Font Size
Determine the font size of the title of the sidebar.
Font Weight
Select the font weight of the title of the sidebar
Text Transform
Select the text transform for the title of the sidebar
Font Style
Select the font style of the title of the sidebar.
