bgYellow shows all white in PowerShell on Windows 10

[js1016]

Following code can reproduce the issue in PowerShell on Windows 10

var colors  = require('colors');
console.log('test'.bgRed); // it works as expected
console.log('test'.bgYellow); // the background is all white in powershell

[frousselet]

Yellow color seems to be represent bold font in PS.

[cumpstey]

Foreground yellow is also white, while magenta appears blue (and so invisible on the default blue background, but you can see it in blue if you change the background colour).