You just gave me an idea for a vim plugin... I guess it's already done? Recent changes could be highlighted with a background color. For example changes from th

You just gave me an idea for a vim plugin... I guess it's already done? Recent changes could be highlighted with a background color. For example changes from the last 10 edits would have green background. That way if I pressed a key by accident and caused vim to change who knows what, I could spot it.