[Djezpur]

I've put these two 'golden oldie' tweaks to good use on my Poke3:

Immersive mode
Hide the status bar on third party apps by entering the following adb command:
adb shell settings put global policy_control immersive.full=[package name]

You can list multiple apps, using a comma as separator, e.g.:
adb shell settings put global policy_control immersive.full=com.app.slh,dev.ukanth.ufirewall

Lockscreen rotation (root)
I use the device mainly in landscape, so it annoyed me that the passcode lockscreen was always displayed in portrait. By adding this line to system\build.prop, the lockscreen follows the system rotation setting:
lockscreen.rot_override=true

Custom bootanimation (root)
Finally, not being a fan of the default Onyx artwork, I have copied my own bootanimation.zip to system\media\.
Stock wallpapers are also located there, but the image that shows after disconnecting a charger resides in res\images\charger\.