The customer requires simplicity and modeling, not exaggeration, and the whole keyboard is completed with a set of molds. In the design, I arbitrarily advocated adding an extra set of molds. After explaining my intention to the guest's proposal, the guest was willing to spend an extra set of molds to keep the contrast part of the black frame. I smiled. After seeing the physical effect of the prototype, the customer was also satisfied. Although not every customer can agree with your idea, and not every time can receive satisfactory results, we still have to insist that we still have to redouble our efforts to create and learn.