While sales of Louboutin knockoffs continue around the web — blatantly bad Louboutin knockoffs, at that — the shoe brand’s case against Yves St. Laurent for making shoes with red soles in the recent resort collection moves forward in court. And a development in the case, which should set a precedent as to whether other luxury shoe labels can safely design shoes with red soles for aesthetic rather than branding reasons, seems to suggest Team Louboutin may have an edge.