Breadcrumb (or Pathway) is displayed only in inner pages (NOT Home Page). If you want to replace the default breadcrumb, go to Appearance > Widgets > Pathway sidebar and drag something into it. For example:
- Remove the pathway: Drag a blank Text Widget to the Pathway sidebar
- Use a new pathway: Maybe the built-in breadcrumb of TrueMag doesn’t meet your demand. Please install a new Pathway plugin to improve it such as https://wordpress.org/plugins/breadcrumb-navxt/, then you just need to drag the plugin widget to Pathway sidebar.