Remove subways bg, add line casing

[pastk]

• closes Remove transparent white layer over the map when subway is enabled #6915

TODO

• put casing color and opacity into styles
• night mode
• check the PT routing
• add casing/outline to stop circles
• ? render lines under POI icons/labels ? (now they're above everything)
• remove unused code

Related to

• Android Layers button does not show the current mode (isolines or subways) #3508

[pastk]

Actually it changes how people use the subway layer.

Now its: enable for a limited time while checking the scheme or routing.

It'll become more like "set and forget" unless subway lines do really get into one's way.

[pastk]

Also its likely people will inquire more often why subway lines don't follow the real tracks..

[patepelo]

@pastk Thanks for this change.

? render lines under POI icons/labels ? (now they're above everything)

Can it be rendered under POIs only when zooming in, but above when zooming out?

[pastk]

Can it be rendered under POIs only when zooming in, but above when zooming out?

I think complexity of implementation doesn't justify it..

I don't think POIs above subway lines will make the lines noticeably less prominent / traceable. E.g. main orange roads are very well visible, but subway lines are thicker and brighter even.

So its more about a schematic / overlay layer feel vs lines integrated into the map.

[RedAuburn]

i like it, but this should be a temporary improvement on the way to the full PT map style imo

[euf]

For a temporary improvement it is really nice! LGTM 👍