The inactive route lines are only half-width, and should be noticeably smaller than active leg line width. Keeping them the same color, helps identify that they are all part of your route, and so we'll probably keep it as is.
I think we'll keep "Restore" as is, since it's just restoring your original plan. I think Restore is more clear/fitting than Reset. What do others think?
These two seem reasonable enough.
And we'll stick with "DirectTo" instead of "Activate", since we've used this term for many years, and don't believe your arguments are strong enough to justify this change. Does anyone else disagree with me on this?
This too seems preferable, but the "Activate" brought another thought. Perhaps an activate button on the Flight Plan page would be appropriate so we could either tentatively amend the current flight plan, or design an entirely new flight plan, while still retaining the active flight plan on the screen. Once we start making changes in the "Flight Plan" the "Activate" button would become "live". None of the changes would take effect until we pressed "Activate". If we simply click on "Close" we would return to the map and our un-amended flight plan. We could then return to "Flight Plan" with our tentative changes still there, continue amending, or change our mind and eliminate them. I don't know if I'd actually use this, I have a hard enough time hitting a few points on the screen once in a while, I can't really imagine doing a flight plan in flight, but perhaps others have a more steady hand or plane.