The MaxSpeed overlay now also shows streets with a speed limit of less than 30km/h, including “highway=living_street”, which usually don’t have an explicit “maxspeed” value set.
Such roads are now rendered in a lighter shade of green, and thinner lines.
Also road segments with no speed limit information at all are now marked with thin, gray lines.
PS: as the original ITO speed limit map has been discontinued, which I originally based the color scheme on, I may refactor the color scheme / color-to-speed mapping at some point