To make your Google Pixel’s screen up to 20% brighter you need for a Rooted Pixel XL, ElementalX kernel installed. Now you hae to follow the steps below.
Step 1. After making your device compatible according to the requirements by installing the ElementalX kernel, then you need to install the other app named High Brightness Mode Widget which can be searched through the Google Play Store. Keep in mind that you need to install this app perfectly as it is necessary for the rest of the process.
Step 2. After downloading this widget app from Google Play Store, you need to put this widget on your Pixel device home screen. As you place the widget on the home screen, you will be prompted for the Root permission that you should grant it to by tapping on the message’s Grant option. This widget can then make up for the changes with the software and also get unlimited access to the system potential.
Step 3. What this app does is simply increase the screen brightness by 20% when the user taps the widget icon. If you also want to increase the brightness of your Pixel device by 20%, you know that you can do it simply by tapping the High Brightness Mode Widget icon. On the other hand, if you want to revert the changes and bring your screen brightness back to normal, you can do that by simply tapping the widget icon again.
Step 4. If you double tap that widget icon, you will notice that your screen brightness is automatically increased or decreased by using the light sensor. Usually the high brightness mode is switched in direct sunlight, which is probably best. That’s all about the app and it works and you understood that this thing is really too simple and fast to apply!
This was the developer’s method of Flar2 that you could also apply to your Pixel XL device and make the screen produce the increased brightness. Although the method is not made by Google, keep in mind that it will most likely not affect your device and you can use it easily.