i hope this works enough to play with

src/client/java/de/cscherr/mcpht/MCPHTClient.java

@@ -12,7 +12,6 @@ import java.util.regex.Pattern;
 
 public class MCPHTClient implements ClientModInitializer {
 	public static final String MOD_ID = "mcpht";
-	public static final String VERSION_NUMBER = "0.0.1";
 	public static final Logger LOGGER = LoggerFactory.getLogger(MOD_ID);
 	public static MCPHTConfig CONFIG;
 	public static XRay XRAY;

src/client/java/de/cscherr/mcpht/XRay.java

@@ -7,16 +7,14 @@ import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;
 import net.minecraft.client.option.KeyBinding;
 import net.minecraft.client.util.InputUtil;
-import net.minecraft.fluid.Fluid;
 import org.lwjgl.glfw.GLFW;
 
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.List;
 
 public class XRay {
     public boolean enable = true;
-    public ArrayList<Block> whitelistBlocks = new ArrayList<Block>(
+    public ArrayList<Block> whitelistBlocks = new ArrayList<>(
             List.of(
                     // Ores
                     Blocks.COAL_ORE,
@@ -82,7 +80,6 @@ public class XRay {
                     Blocks.RED_SHULKER_BOX
             )
     );
-    public ArrayList<Fluid> whitelistFluids;
     private static KeyBinding toggleKey;
 
     public void init() {
@@ -105,4 +102,8 @@ public class XRay {
     public boolean showRenderBlock(BlockState state) {
         return whitelistBlocks.contains(state.getBlock());
     }
+
+    public boolean getEnable() {
+        return enable && MCPHTClient.CONFIG.xRay.enable;
+    }
 }

src/client/java/de/cscherr/mcpht/config/MCPHTConfig.java

@@ -1,14 +1,10 @@
 package de.cscherr.mcpht.config;
 
 import de.cscherr.mcpht.MCPHTClient;
-import de.cscherr.mcpht.mixin.client.NetworkPacketLogMixin;
 import me.shedaniel.autoconfig.ConfigData;
 import me.shedaniel.autoconfig.annotation.Config;
 import me.shedaniel.autoconfig.annotation.ConfigEntry;
-import net.minecraft.block.Block;
-import net.minecraft.block.RedstoneBlock;
 
-import java.util.ArrayList;
 import java.util.regex.Pattern;
 
 @Config(name = "mcphtconf")
@@ -26,15 +22,16 @@ public class MCPHTConfig implements ConfigData {
         logSettings();
     }
     public void logSettings() {
-        MCPHTClient.LOGGER.info(String.format("CONFIG: \n" +
+        MCPHTClient.LOGGER.info(String.format("""
-                "NetworkLogging\n" +
+                        CONFIG:\s
-                "	RX: %b\n" +
+                        NetworkLogging
-                "	TX: %b\n" +
+                        	RX: %b
-                "	verbosity: %s\n" +
+                        	TX: %b
-                "	regex: '%s'\n" +
+                        	verbosity: %s
-                "	filter: %s\n" +
+                        	regex: '%s'
-                "Rendering\n" +
+                        	filter: %s
-                "   enabled: %b",
+                        Rendering
+                           enabled: %b""",
                 MCPHTClient.CONFIG.networkLogging.RX,
                 MCPHTClient.CONFIG.networkLogging.TX,
                 MCPHTClient.CONFIG.networkLogging.verbosity,
@@ -70,5 +67,6 @@ public class MCPHTConfig implements ConfigData {
     // TODO: toggle with hotkey
     public static class XRayScheme {
         public boolean enable = false;
+        public boolean overwriteBrightness;
     }
 }

src/client/java/de/cscherr/mcpht/mixin/client/MixinBlock.java

@@ -1,27 +1,25 @@
 package de.cscherr.mcpht.mixin.client;
 
 import de.cscherr.mcpht.MCPHTClient;
-import de.cscherr.mcpht.XRay;
-import net.minecraft.util.Identifier;
-import org.slf4j.Logger;
-import org.spongepowered.asm.mixin.Final;
-import org.spongepowered.asm.mixin.Mixin;
-
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Direction;
 import net.minecraft.world.BlockView;
-import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
 @Mixin(Block.class)
-public abstract class BlockMixin {
+public abstract class MixinBlock {
-    @Shadow @Final private static Logger LOGGER;
+    @Inject(at = @At("RETURN"), method = "shouldDrawSide(" + "Lnet/minecraft/block/BlockState;" + // state
-
+            "Lnet/minecraft/world/BlockView;" + // reader
-    @Inject(method = "shouldDrawSide", at = @At("RETURN"), cancellable = true)
+            "Lnet/minecraft/util/math/BlockPos;" + // pos
+            "Lnet/minecraft/util/math/Direction;" + // face
+            "Lnet/minecraft/util/math/BlockPos;" + // blockPos
+            ")Z", // ci
+            cancellable = true)
     private static void shouldDrawSide(BlockState state,
                                        BlockView world,
                                        BlockPos pos,
@@ -29,7 +27,7 @@ public abstract class BlockMixin {
                                        BlockPos otherPos,
                                        CallbackInfoReturnable<Boolean> cir
     ) {
-        if (MCPHTClient.XRAY.enable && MCPHTClient.CONFIG.xRay.enable) {
+        if (MCPHTClient.XRAY.getEnable()) {
             cir.setReturnValue(MCPHTClient.XRAY.showRenderBlock(state));
         }
     }

src/client/java/de/cscherr/mcpht/mixin/client/MixinBlockOcclusionCache.java

@@ -0,0 +1,23 @@
+package de.cscherr.mcpht.mixin.client;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Direction;
+import net.minecraft.world.BlockView;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Pseudo;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Pseudo
+@Mixin(targets = "me.jellysquid.mods.sodium.client.render.occlusion.BlockOcclusionCache")
+/**
+ * Fix for sodium, so that it doesn't break xray.
+ */
+public class MixinBlockOcclusionCache {
+    @Inject(at = @At("HEAD"), method = "shouldDrawSide", cancellable = true, remap = false)
+    private void shouldDrawSide(BlockState state, BlockView reader, BlockPos pos, Direction face,
+                                CallbackInfoReturnable<Boolean> ci) {
+    }
+}

src/client/java/de/cscherr/mcpht/mixin/client/MixinLightmapTextureManager.java

@@ -0,0 +1,26 @@
+package de.cscherr.mcpht.mixin.client;
+
+import de.cscherr.mcpht.MCPHTClient;
+import net.minecraft.client.option.GameOptions;
+import net.minecraft.client.option.SimpleOption;
+import net.minecraft.text.Text;
+import org.objectweb.asm.Opcodes;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(net.minecraft.client.render.LightmapTextureManager.class)
+public class MixinLightmapTextureManager {
+    @Redirect(at = @At(value = "INVOKE", target = "Lnet/minecraft/client/option/GameOptions;getGamma()Lnet/minecraft/client/option/SimpleOption;", opcode = Opcodes.INVOKEVIRTUAL), method = "update(F)V")
+    private SimpleOption<Double> getFieldValue(GameOptions options) {
+        // full brightness if xray is on with overwriteBrightness
+        if (MCPHTClient.CONFIG.xRay.overwriteBrightness && MCPHTClient.XRAY.getEnable()) {
+            return new SimpleOption<>("options.gamma", SimpleOption.emptyTooltip(), (optionText, value) -> Text.empty(), SimpleOption.DoubleSliderCallbacks.INSTANCE.withModifier(
+                    d -> (double) 20f, d -> 1
+            ), 0.5, value -> {
+            });
+        } else {
+            return options.getGamma();
+        }
+    }
+}

src/client/java/de/cscherr/mcpht/mixin/client/MixinMinecraftClient.java

@@ -0,0 +1,19 @@
+package de.cscherr.mcpht.mixin.client;
+
+import de.cscherr.mcpht.MCPHTClient;
+import net.minecraft.client.MinecraftClient;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Mixin(MinecraftClient.class)
+public class MixinMinecraftClient {
+    @Inject(at = @At(value = "HEAD"), method = "isAmbientOcclusionEnabled()Z", cancellable = true)
+    private static void isAmbientOcclusionEnabled(CallbackInfoReturnable<Boolean> ci) {
+        if (MCPHTClient.XRAY.getEnable() && MCPHTClient.CONFIG.xRay.overwriteBrightness) {
+            ci.setReturnValue(false);
+            ci.cancel();
+        }
+    }
+}

src/client/java/de/cscherr/mcpht/mixin/client/MixinNetworkPacketLog.java

@@ -1,7 +1,6 @@
 package de.cscherr.mcpht.mixin.client;
 
 import de.cscherr.mcpht.MCPHTClient;
-import de.cscherr.mcpht.config.MCPHTConfig;
 import net.minecraft.network.ClientConnection;
 import net.minecraft.network.packet.c2s.play.PlayerMoveC2SPacket;
 import org.slf4j.Logger;
@@ -15,10 +14,8 @@ import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 import org.jetbrains.annotations.Nullable;
 
-import java.util.regex.Pattern;
-
 @Mixin(ClientConnection.class)
-public class NetworkPacketLogMixin {
+public class MixinNetworkPacketLog {
     private static boolean filterPacket(Packet<?> packet) {
         return MCPHTClient.networkPacketFilter.matcher(packet.getClass().getSimpleName()).find();
     }

src/client/resources/mcpht.client.mixins.json

@@ -3,8 +3,11 @@
   "package": "de.cscherr.mcpht.mixin.client",
   "compatibilityLevel": "JAVA_17",
   "client": [
-		"NetworkPacketLogMixin",
+    "MixinBlock",
-		"BlockMixin"
+    "MixinNetworkPacketLog",
+    "MixinBlockOcclusionCache",
+    "MixinLightmapTextureManager",
+    "MixinMinecraftClient"
   ],
   "injectors": {
     "defaultRequire": 1

src/client/resources/mcpht.sodium.mixins.json

@@ -0,0 +1,16 @@
+{
+  "required": true,
+  "minVersion": "0.8",
+  "package": "de.cscherr.mcpht.mixin.client",
+  "compatibilityLevel": "JAVA_8",
+  "mixins": [],
+  "client": [
+    "MixinBlock",
+    "MixinBlockOcclusionCache",
+    "MixinMinecraftClient",
+    "MixinLightmapTextureManager"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  }
+}

src/main/resources/assets/mcpht/lang/en_us.json

@@ -7,7 +7,11 @@
 
   "text.autoconfig.mcphtconf.option.xRay": "XRay",
   "text.autoconfig.mcphtconf.option.xRay.enable": "enable",
+  "text.autoconfig.mcphtconf.option.xRay.overwriteBrightness": "overwrite Brightness",
 
   "text.autoconfig.mcphtconf.category.Networking": "Networking",
-  "text.autoconfig.mcphtconf.category.Rendering": "Rendering"
+  "text.autoconfig.mcphtconf.category.Rendering": "Rendering",
+
+  "key.mcpht.toggleXray": "XRay toggle",
+  "category.mcpht.rendering": "MCPHT-Rendering"
 }

src/main/resources/fabric.mod.json

@@ -35,6 +35,10 @@
     {
       "config": "mcpht.client.mixins.json",
       "environment": "client"
+    },
+    {
+      "config": "mcpht.sodium.mixins.json",
+      "environment": "client"
     }
   ],
   "depends": {