What does crafted line mean?

All Crafted Line vehicles feature an Ultra White exterior with contrasting black door handles, side mirrors and grille. Other exterior Obsidian treatments vary by model and enhance the modern simplicity of the special edition. Eye-catching seats, contrast stitching, headrests and door panels are either two-tone Black/Scarlet or Black/Cabernet. The Crafted Line comes equipped with Navigation and Blind Spot Monitor with Rear Cross Traffic Alert. Some vehicles also have additional convenience features which vary by model.

seems to be a limited edition model offer in Ultra White and Obsidian Exteriors with Red Interiors. Here is the link to all the info about the Crafted Line Lexus: http://www.lexus.com/craftedline/_pdf/LexusCraftedLine.pdf