In a jenkins.branch.MultiBranchProjectViewHolder$ViewImpl with https://github.com/jenkinsci/branch-api-plugin/blob/master/src/main/resources/jenkins/branch/BranchStatusColumn/column.jelly the legend has a single stroke through the icon in / shape, list view has 2 in X shape.

This is a bug in lib/hudson/ballColorTd. which was not adapted in https://github.com/jenkinsci/jenkins/pull/8705

Screenshots with a second "StatusColumn" that always renders using ballColorTd.