Right-hand sidebar Icon for Outgoing- and Back- links: just slope them like "/" & "\"

Trivial UI (simplified intuitive icons) suggestion:
For the right-hand sidebar, regarding the icons for the options to display Outgoing links or Backlinks: Slope the links-icon in each case, like “/” (forward slash) for forward (i.e. outgoing) links, and like "" (backslash) for backlinks. Then no need for tiny-fontsize text with each icon.