Checkout

From Shopify admin -> Settings -> Checkout -> Customize

Notice: Please keep in mind that Shopify only allows you to customize these basic options for your store and nothing we can interfere because of Checkout page is managed by Shopify. So if you want to interfere more deeper like add sections or feature to the Checkout page, please contact to the Shopify Help Center for help, you can not customize it from the themes.

2. Background for Main content area and Older summary

You can upload images/ choose color for backgrounds.

3. Typography and Color