Feature request: Autogenerate legend

[shannonturner]

Suggestion via email:

Create a legend/key to lines. I have hacked a legend by making a short line with a station and naming those, bottom left of my metro map. It would be nice if it could generate the legend, with the user filling in the line name. The line name could be taken from the line name in the Draw menu, but in my case I am red/green colour blind so keep the name to equal the colour name to help my identify the lines. But this suggestion is something I can see being at the end of the list as there is a work around:-)