sentences:  The concept of "what you see is what you get" (WYSIWYG) was considered paramount.Text would be displayed as black on a white background, just like paper, and the printer would replicate the screen using Interpress, a page description language developed at PARC.One of the main designers of the Star, Dr. David Canfield Smith, invented the concept of computer icons and the desktop metaphor, in which the user would see a desktop that contained documents and folders, with different icons representing different types of documents.