Add tooltips to train bullets or station symbols?

[evilmonkey853]

Would it be possible to add some additional information when hovering over the train bullets or stop indicators if there are service changes? Without leaving the page and looking for the legend, it isn't always clear what a half-filled circle means.

See screenshots:

You could even take this to the next level and add a popover or overlay when you hover over the bullets to give more information or format the information more cleanly. This popover could give upcoming transfer information at that stop, etc.