Line colors are coming from the data source which should use official colors.

Hi @grote! Thanks for explaining.

Do you mean 'should' as in:
"The source should use official colours (though maybe it doesn't)"?

In that case I guess the question would be: how would one find a balance between using official colours and keeping them visible on a white background?

I guess some data sources use official colors and others don't. I can't travel and investigate this everywhere. A solution could be to add a dark stroke color around the white lines when the user uses the light theme and a bright color when the user uses the dark theme and has dark line colors.

Feel free to do a PR for the stroke solution.

I implemented a fix for this in #948. In short, these are the things I changed to fix this issue:

• Invert line background color if contrast isn't high enough. (This might lead to some mismatch with some official colors, but it's not that commom, and I'd say it is a good compromise :) )
• Don't use the foreground color provided by line, simple choose the best between white and black for best readability :)

Feel free to give your feedback about it :)

I'm looking for feedback on the UI changes in #948, if someone is willing to try it out and review the changes it would be great :) I don't feel comfortable merging a big UI change without feedback :)

@Altonss I would have loved to test this, but sadly, since opening this issue, Transportr has stopped working in the Netherlands.