An apparatus and method are disclosed which permit selection of colors for display, and easy modification of displayed colors. The apparatus includes a microprocessor, a ROM with a stored program, a RAM with midifiable color data a CRT display for displaying color images, and a keyboard with a cursor-positioning...http://www.google.de/patents/US4694286?utm_source=gb-gplus-sharePatent US4694286 - Apparatus and method for modifying displayed color images
