SORRY. Let me update those links:
Currently in my Seclek Breadcrumbs Theme Options: https://photos.app.goo.gl/8dDef54nBvfv8wUY9
How that background appears in the demo site: https://photos.app.goo.gl/HxSJrk56PuXKwxtQA
But how it appears in my sample webpage I am trying to change: https://photos.app.goo.gl/XETyAGxqpBht8uSb6