Netflix has long supported high dynamic range (HDR) on mobile devices, but a recent investigation by Android Authority and app researcher AssembleDebug shows that the streaming giant is experimenting with a toggle feature in its latest beta, which would allow users to choose between receiving an HDR or SDR feed. While we should note that this is only a test and that such a feature may never see the light of day, this is not coming from nowhere, and is in fact indicative of a larger trend emanating with HDR on mobile—that sometimes it sucks. After all, once Netflix implemented support for HDR content, it did not come to mind that users would want to switch back to SDR, with…