Potato Open Sauce Project (no, that's not a typo!) aka POSP is the go-to choice of many users when it comes to a lightweight AOSP-based custom ROM that also offers a handful of UI/UX customizations. Founded by XDA Recognized Developer Agent_fabulous, POSP is known for integrating useful features on top of its stock Android base, such as the Android Pie’s missing expandable volume panel. Talking about the volume panel, the development team behind POSP has now revamped the volume panel manager with four different panel styles.
After installing the recent-most POSP build 3.2.0, users have the freedom to stick with the vanilla Android 10 style volume panel, or replace it with any of the three different layouts: compact, Android Oreo, and tiled. The relevant volume panel style picker can be found under the "Themes" section as shown below.
While it is possible to theme Android's volume panel using third-party tools like Volume Styles, nothing beats a fully native solution baked into the OS itself. Apart from the addition of these new panels, Potato Open Sauce Project's latest update also brings in dark mode to its dialer app and the ability to change the size of the navigation pill as well as hide it altogether. Expand the following menu to see all the fixes and improvements in the latest update to POSP.
Interested to try out POSP on your phone? Go ahead and head on over to the official download portal of the project. As always, you need to unlock the bootloader of your device beforehand and install a custom recovery like TWRP. For further information, refer to the POSP discussion thread under the device-specific XDA sub-forum before proceeding.
Source: POSP GitHub