@kudlav found two issues with the Public transport labels.

1. When a routes color is stored as normal English word e.g. yellow the text color can't be correctly set to white or black and the contrast may be low, as suggested now the words get mapped to a hex value.
2. With bus, tram... stops nearer than 150 meters from each other the routes from the other one will be shown. Now the name of the stop position must be the same as from the station.
   I've explained why this may become a problem here