It's hard to demonstrate something that changes your screen brightness, because brightness changes won't be captured using screen capture software, and because what people see would depend on their screen brightness setting too. I could have used a video camera or something to record my computer's screen, but I thought that would be overkill / not worth the effort, so I just opted to produce a gif that does an okay job of illustrating the effect.
It's hard to demonstrate something that changes your screen brightness, because brightness changes won't be captured using screen capture software, and because what people see would depend on their screen brightness setting too. I could have used a video camera or something to record my computer's screen, but I thought that would be overkill / not worth the effort, so I just opted to produce a gif that does an okay job of illustrating the effect.