NVG and glass cockpits

[Saintsman]

Does anyone know what the displays look like for use with Night Vision Goggles?

I realise that this is not the sort of thing you find in your average airliner but I am trying to find out what they would look like. I know that things like warning lights have to be a certain colour or have a filter that stops them from appearing so bright through the NVGs but how would a multi coloured screen appear? If it was all one colour (green?) how easy would it be to read?

If glass cockpits are suitable, do they have a switch to change from day to night or is it just one choice?

Thanks,

Saintsman