Toggling a ratsnest is different than highlighting a net. For the latter, see PCBNew 6.0.1 missing track highlighter? - #2 by craftyjon. For the ratsnest, you can go to the Appearance panel → Nets and toggle ratsnest line on/off for each net.
Toggling a ratsnest is different than highlighting a net. For the latter, see PCBNew 6.0.1 missing track highlighter? - #2 by craftyjon. For the ratsnest, you can go to the Appearance panel → Nets and toggle ratsnest line on/off for each net.