My guess is work safety regulations. There are regulations that your desk is big enough, that your chair can be moved and has at least five wheels so that it st

My guess is work safety regulations. There are regulations that your desk is big enough, that your chair can be moved and has at least five wheels so that it stands stable. There are also regulations that you need enough (natural) light, which includes that your table needs a light colour. I guess that this was over interpreted into also computers being light colour.