To create a faux molding, a straight edge and pencil are used to draw a line, then shading is added with paint to give the look of a curve.

WSJ: An Artisan Who Can Turn Paint into Stone | Creating

Blue leather booths line the walls covered with Al Hirschfeld drawings, underneath dark wood molding contrasted with a modern splash of blue light at the ceiling's edge.

BBC: New York City's classic hotel bars