[Google Pixel 4 Themes, Apps, and Mods] XlAfbk:
unfortunately that doesn't work, SystemUI crashs in a loop. These errors I found in logcat:

ReflectionUtils E methodInvoke isPowerSavingModeDisabled failed
E java.lang.NoSuchMethodException: android.os.customize.OplusCustomizeRestrictionManager.isPowerSavingModeDisabled []
E at java.lang.Class.getMethod(Class.java:2103)
E at java.lang.Class.getDeclaredMethod(Class.java:2081)
E at com.oplusos.systemui.common.util.ReflectionUtils.methodInvoke(ReflectionUtils.java:34)
E at com.oplusos.systemui.common.util.ReflectionUtils.methodInvoke(ReflectionUtils.java:24)
E at com.oplusos.systemui.common.observer.oplus.PowerSavingModeDisableObserver.isPowerSavingModeDisabled(PowerSavingModeDisableObserver.java:60)
E at com.oplusos.systemui.common.observer.oplus.PowerSavingModeDisableObserver.load(PowerSavingModeDisableObserver.java:48)
E at com.oplusos.systemui.common.observer.oplus.AbstractObserver.register(AbstractObserver.java:34)
E at com.oplusos.systemui.common.manager.OplusSystemUiManager.registerObserver(OplusSystemUiManager.kt:213)
E at com.oplusos.systemui.common.manager.OplusSystemUiManager.initComponentBeforeStartingServices(OplusSystemUiManager.kt:124)
E at com.android.systemui.statusbar.phone.StatusBar.start(StatusBar.java:1111)
E at java.lang.reflect.Method.invoke(Native Method)
E at org.lsposed.lspd.nativebridge.HookBridge.invokeOriginalMethod(Native Method)
E at de.robv.android.xposed.XposedBridge$AdditionalHookInfo.callback(Unknown Source:110)
E at LSPHooker_.start(Unknown Source:8)
E at com.android.systemui.SystemUIApplication.startServicesIfNeeded(SystemUIApplication.java:303)
E at com.android.systemui.SystemUIApplication.startServicesIfNeeded(SystemUIApplication.java:238)
E at com.android.systemui.SystemUIApplication.onCreate(SystemUIApplication.java:185)
E at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1226)
E at android.app.ActivityThread.handleBindApplication(ActivityThread.java:7046)
E at android.app.ActivityThread.access$1800(ActivityThread.java:254)
E at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2184)
E at android.os.Handler.dispatchMessage(Handler.java:106)
E at android.os.Looper.loopOnce(Looper.java:233)
E at android.os.Looper.loop(Looper.java:344)
E at android.app.ActivityThread.main(ActivityThread.java:8212)
E at java.lang.reflect.Method.invoke(Native Method)
E at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:584)
E at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1034)

LSPosed-Bridge I Crash unexpectedly: java.lang.UnsatisfiedLinkError: dlopen failed: library "/system/system_ext/priv-app/SystemUI/SystemUI.apk!/lib/arm64-v8a/liboplus_image_process.so" not found
I at java.lang.Runtime.loadLibrary0(Runtime.java:1077)
I at java.lang.Runtime.loadLibrary0(Runtime.java:998)
I at java.lang.System.loadLibrary(System.java:1661)
I at com.oplus.wallpaper.sdk.ImageProcess.<clinit>(ImageProcess.java:38)
I at com.oplusos.systemui.keyguard.util.KeyguardUtils.calculateWallpaperColor(KeyguardUtils.java:399)
I at com.oplusos.systemui.keyguard.util.KeyguardUtils.isLightWallpaper(KeyguardUtils.java:384)
I at com.oplusos.systemui.keyguard.wallpaper.LocalWallpaperHelper.setWallpaperStatus(LocalWallpaperHelper.java:548)
I at com.oplusos.systemui.keyguard.wallpaper.LocalWallpaperHelper.loadWallpaperFromWps(LocalWallpaperHelper.java:206)
I at com.oplusos.systemui.keyguard.wallpaper.LocalWallpaperHelper.loadWallpaperDrawable(LocalWallpaperHelper.java:146)
I at com.oplusos.systemui.keyguard.wallpaper.LocalWallpaperHelper.lambda$new$0$LocalWallpaperHelper(LocalWallpaperHelper.java:287)
I at com.oplusos.systemui.keyguard.wallpaper.-$$Lambda$LocalWallpaperHelper$X1Bb8Hq_GdwK_B4EaUPHIQw6IGg.run(Unknown Source:2)
I at android.os.Handler.handleCallback(Handler.java:938)
I at android.os.Handler.dispatchMessage(Handler.java:99)
I at android.os.Looper.loopOnce(Looper.java:233)
I at android.os.Looper.loop(Looper.java:344)
I at android.os.HandlerThread.run(HandlerThread.java:67)
WifiManager V SoftApCallbackProxy: send InfoChanged, newInfo: SoftApInfo{bandwidth= 0, frequency= 0, wifiStandard= 0, mApInstanceIdentifier= null, mIdleShutdownTimeoutMillis= 0}
AndroidRuntime E FATAL EXCEPTION: KeyguardWorkerThread
E Process: com.android.systemui, PID: 18362
E java.lang.UnsatisfiedLinkError: dlopen failed: library "/system/system_ext/priv-app/SystemUI/SystemUI.apk!/lib/arm64-v8a/liboplus_image_process.so" not found
E at java.lang.Runtime.loadLibrary0(Runtime.java:1077)
E at java.lang.Runtime.loadLibrary0(Runtime.java:998)
E at java.lang.System.loadLibrary(System.java:1661)
E at com.oplus.wallpaper.sdk.ImageProcess.<clinit>(ImageProcess.java:38)
E at com.oplusos.systemui.keyguard.util.KeyguardUtils.calculateWallpaperColor(KeyguardUtils.java:399)
E at com.oplusos.systemui.keyguard.util.KeyguardUtils.isLightWallpaper(KeyguardUtils.java:384)
E at com.oplusos.systemui.keyguard.wallpaper.LocalWallpaperHelper.setWallpaperStatus(LocalWallpaperHelper.java:548)
E at com.oplusos.systemui.keyguard.wallpaper.LocalWallpaperHelper.loadWallpaperFromWps(LocalWallpaperHelper.java:206)
E at com.oplusos.systemui.keyguard.wallpaper.LocalWallpaperHelper.loadWallpaperDrawable(LocalWallpaperHelper.java:146)
E at com.oplusos.systemui.keyguard.wallpaper.LocalWallpaperHelper.lambda$new$0$LocalWallpaperHelper(LocalWallpaperHelper.java:287)
E at com.oplusos.systemui.keyguard.wallpaper.-$$Lambda$LocalWallpaperHelper$X1Bb8Hq_GdwK_B4EaUPHIQw6IGg.run(Unknown Source:2)
E at android.os.Handler.handleCallback(Handler.java:938)
E at android.os.Handler.dispatchMessage(Handler.java:99)
E at android.os.Looper.loopOnce(Looper.java:233)
E at android.os.Looper.loop(Looper.java:344)
E at android.os.HandlerThread.run(HandlerThread.java:67)