Add labels to the start/end map markers so they are better differentiated

[barbeau]

I met with someone here at USF last week that has studied color-blindness, and she made the very good point that a person who is color-blind can't actually distinguish between the current start and end makers in our app, since red and green look very similar:

I'd like to see us add some kind of labeling on the markers themselves so they can more easily be identified as start and end without relying only on the color of the marker.

One option is the letters "A" and "B" inside the markers (this is how Google Maps used to do it).

Now, Google Maps only marks the end location with a pin marker, and the starting location is represented by a small grey circle. I'm not sure if I like this:

Google Maps Desktop:

Google Maps Android:

MapQuest does the "A" and "B":

[vreixo]

I understand the problem, so we should try to find a solution. I wonder if it's possible to just take actual markers and add letters, because they may be proprietary from Google, but even if this is the case will be use to fetch something similar more open in the net.

The part that I really liked of these icons are that they are stock ones so the user should be more comfortable with them because they are present in other apps, there will be updates on system updates (and they are beautiful).

PD: I also prefer MapQuest approach with clear markers (although these ones are not very pretty in my opinion)