I  don't get a warning if I plan a route through a temporary airway. Today it's Class D NW of Kemble, last Saturday it was Class A over Leicestershire. The only indication is a faint dashed centreline, from which it is hard to get the pop-up message, and there is no indication of width. I haven't flown the routes, but assume there will be no airborne warning either. These NOTAMs seem to be coming more frequently, so is there any way of improving the visibility of them and getting warnings?