diff --git a/launcher/src/client/available-feature-flags b/launcher/src/client/available-feature-flags
index feba5ff..838422a 100644
--- a/launcher/src/client/available-feature-flags
+++ b/launcher/src/client/available-feature-flags
@@ -51,3 +51,4 @@ TRUE Disable Hostile AI In Creative Mode
 TRUE Load Custom Skins
 TRUE 3D Chest Model
 TRUE Replace Block Highlight With Outline
+TRUE Use Java Beta 1.3 Light Ramp
diff --git a/mods/src/misc/misc.c b/mods/src/misc/misc.c
index 0063997..4b37ead 100644
--- a/mods/src/misc/misc.c
+++ b/mods/src/misc/misc.c
@@ -545,6 +545,18 @@ static int FurnaceTileEntity_getLitProgress_injection(FurnaceTileEntity *furnace
     return ret;
 }
 
+// Java Light Ramp
+static void Dimension_updateLightRamp_injection(Dimension *self) {
+    // https://github.com/ReMinecraftPE/mcpe/blob/d7a8b6baecf8b3b050538abdbc976f690312aa2d/source/world/level/Dimension.cpp#L92-L105
+    for (int i = 0; i <= 15; i++) {
+        float f1 = 1.0f - (((float) i) / 15.0f);
+        self->light_ramp[i] = ((1.0f - f1) / (f1 * 3.0f + 1.0f)) * (1.0f - 0.1f) + 0.1f;
+        // Default Light Ramp:
+        // float fVar4 = 1.0 - ((float) i * 0.0625);
+        // self->light_ramp[i] = ((1.0 - fVar4) / (fVar4 * 3.0 + 1.0)) * 0.95 + 0.15;
+    }
+}
+
 // Init
 static void nop() {
 }
@@ -731,6 +743,11 @@ void init_misc() {
     unsigned char mov_r3_ff[4] = {0xff, 0x30, 0xa0, 0xe3}; // "mov r3, #0xff"
     patch((void *) 0x7178c, mov_r3_ff);
 
+    // Java Light Ramp
+    if (feature_has("Use Java Beta 1.3 Light Ramp", server_disabled)) {
+        overwrite((void *) Dimension_updateLightRamp_non_virtual, (void *) Dimension_updateLightRamp_injection);
+    }
+
     // Init C++ And Logging
     _init_misc_cpp();
     _init_misc_logging();
diff --git a/symbols/CMakeLists.txt b/symbols/CMakeLists.txt
index 005dec3..d24b5ae 100644
--- a/symbols/CMakeLists.txt
+++ b/symbols/CMakeLists.txt
@@ -74,6 +74,8 @@ set(SRC
     src/level/LevelData.def
     src/level/LevelSettings.def
     src/level/ServerLevel.def
+    src/level/Dimension.def
+    src/level/MultiPlayerLevel.def
     src/item/ItemRenderer.def
     src/item/ItemInHandRenderer.def
     src/item/AuxDataTileItem.def
diff --git a/symbols/src/level/Dimension.def b/symbols/src/level/Dimension.def
new file mode 100644
index 0000000..ee73739
--- /dev/null
+++ b/symbols/src/level/Dimension.def
@@ -0,0 +1,5 @@
+vtable 0x110370;
+
+virtual-method void updateLightRamp() = 0x28;
+
+property float light_ramp[16] = 0x10;
diff --git a/symbols/src/level/Level.def b/symbols/src/level/Level.def
index 0411c97..15220bc 100644
--- a/symbols/src/level/Level.def
+++ b/symbols/src/level/Level.def
@@ -1,6 +1,6 @@
 extends LevelSource;
 
-vtable 0x108de0;
+vtable 0x10fcf0;
 
 method void saveLevelData() = 0xa2e94;
 method void setTileAndData(int x, int y, int z, int id, int data) = 0xa38b4;
diff --git a/symbols/src/level/MultiPlayerLevel.def b/symbols/src/level/MultiPlayerLevel.def
new file mode 100644
index 0000000..0b204a8
--- /dev/null
+++ b/symbols/src/level/MultiPlayerLevel.def
@@ -0,0 +1,3 @@
+extends Level;
+
+vtable 0x108de0;
diff --git a/symbols/src/level/ServerLevel.def b/symbols/src/level/ServerLevel.def
index c2c36e3..5416505 100644
--- a/symbols/src/level/ServerLevel.def
+++ b/symbols/src/level/ServerLevel.def
@@ -2,4 +2,4 @@ extends Level;
 
 size 0xb80;
 
-constructor (uchar *storage, uchar *name, LevelSettings *settings, int param_4, uchar *dimension) = 0x7692c;
+constructor (uchar *storage, uchar *name, LevelSettings *settings, int param_4, Dimension *dimension) = 0x7692c;