reduce opacity of unselected labels in focus function to 0.5, restore opacity to unselected labels in focus out function
reduce opacity of unselected labels in focus function to 0.5, restore opacity to unselected labels in focus out function

Pietro-Martini/Pietro-Martini.github.io,Pietro-Martini/Pietro-Martini.github.io,Pietro-Martini/Pietro-Martini.github.io