Board Thread:New Features/@comment-26569706-20190213143113/@comment-168424-20190215062616

The global nav bar is overall black as a background color... the color of the local wiki is irrelevant, since the icons in question are always on the global nav bar.

The colors on traffic lights are based more on tradition than anything (mostly from trains apparently). Probably similar to how stupid American cars have red blinking signal lights even though there is overwhelming evidence that amber or yellow is better.

Here's an article about the red vs. yellow fire truck thing, in case anybody is still interested: Why Lime-Yellow Fire Trucks Are Safer Than Red