One of the main problems many users had with the OnePlus 3 was the lack of brightness. The maximum brightness of the device is not that great, and many of you were having trouble viewing your displays in direct sunlight. There is a pretty simple fix for this. The High Brightness Mode Widget allows you to turn up your screens brightness even past the maximum brightness with a tap of your screen. The widget includes an auto mode or you can set it manually. You should know that this mod does require your OnePlus 3 to be rooted. Head to the link below for the install.
via Play Store