(Rare Technical Term)
In design theory or management papers, an éminence grise (gray eminence) is a person who exercises power or influence without holding an official title. An would then be a designer who: eminence designer
But if you are building the house your grandchildren will inherit; if you believe that where you live is a direct reflection of who you are; if you are tired of seeing your neighbors' homes in magazines and want to see a home that couldn't exist anywhere else —then you need an eminence designer. (Rare Technical Term) In design theory or management