Anchors larger target markers onto nameplate for visibility. This is for Blizzard's Default Nameplates.
Friendly Nameplates have to be enabled. Consider running this script to shorten friendly nameplates and reduce clutter.
/run C_NamePlate.SetNamePlateFriendlySize(60, 30)
To adjust icon size, opacity, frame strata, go to the Group's Display tab.