To invert the colors on your Windows display, go into your computer's Control Panel. There, you can change a number of settings.

Reasons for inverting the colors on your PC include seeking relief from eyestrain, craving a better night's sleep after a long day at the computer, or simply wanting a different look for your screen.

If the type is too small on your computer screen or smartphone, every operating system has a magnifier tool to help you zoom in for readability. Eric has been writing about tech for 30+ years. He ...