Header
You can find options to show or hide icons (Search, cart, and login) on the header in the [Theme] Options > Headers > edit each header in use > Header > Header Icon > you will see options like below.
Moreover, you're able to choose icon type for the Search, Cart and Login icon.
- Default type inherit from the theme
- Fontawesome
- Custom (you can upload custom icon images)
About the icon size, set icon size in rem, em, px or percentage unit values.