You can customize each “Breadcrumb” element using the Post Grid Combo plugin. This article will help you customize the element of Breadcrumb.
To begin, insert a “Breadcrumb” block.
Click on the “Items” tab.
Now insert some breadcrumb elements. If you don’t know how to insert some breadcrumb element, then read this documentation.
For example, I added Home Page Link and Post Title.
Now I expand the Home Page Link by clicking on it. Then I can customize its Label, Custom URL, Icon, Color, and Background-Color.
Using this method, you can customize the breadcrumb element.