YouTube's full screen player got an AMOLED-unfriendly update, but it's not sticking around

Turned sideways, tall phone screens become great landscape displays for video content. But both phones and videos come in all manner of shapes and sizes, so to fill in the gaps when a video doesn't fit just right, apps have to insert something on the sides. YouTube's Ambient Mode fills the gaps with a sort of colored blur, but short of that, most people would agree that the correct something would be simple black bars that all but disappear on an OLED display. Recently, though, as spotted by Android Authority, the YouTube app has started inserting distracting gray bars instead. The change could be short-lived, though.