Breadcrumbs
    1.
    From your Shopify admin, go to Online Store > Themes.
    2.
    Find the theme that you want to edit and click Customize.
    3.
    In the left-hand toolbar, click Theme settings.
    4.
    Click Breadcrumbs.

Background

Use the color picker to pick a background color for the breadcrumbs block.

Collection page

Configure the breadcrumbs on the collection page.
    Slogan: add the slogan text that is shown below the collection title.
    Background image:
      Enable: turn on/off the background image.
      Pick or upload an image: configure the image to display it as a background image.
    Text color: pick a color for texts in the breadcrumbs block.

Blog page

Configure the breadcrumbs on the blog page.
    Slogan: add the slogan text that is shown below the blog title.