anchor.diff:        expand_all: true,
         id_namespace: "nav-icons-custom",
         toggles: true,
  +      temporary_toggles: true,
         icons: {
           expand: icon("star_empty"),
           collapse: icon("star"),
  
positive.code:       expand_all: true,
        id_namespace: "nav-no-icons",
        toggles: true,
      }) %>
    &lt;/nav>
  &lt;/div>
  
negative.code:       expand_all: true,
        id_namespace: "example-split",
        toggles: "split",
        temporary_toggles: true,
        icons: true,
      }) %>
    &lt;/nav>
  