Unlike classic keyboards where characters were small decals stuck on generic keys, many modern keyboards, such as those in Apple's laptops, have keys built for the specific characters. The keys are made of translucent plastic with a black coating so the character can be illuminated with a backlight.
This approach to keys offers great advantage in low-light situations, but it also can be a bit of a burden if the key begins to wear out. While the keys ought to last, after extensive use you may look down to see some of the characters fading away.
When key wear … Read more