diff --git a/crates/resource/src/block_types.rs b/crates/resource/src/block_types.rs
index 7ee50af..6229016 100644
--- a/crates/resource/src/block_types.rs
+++ b/crates/resource/src/block_types.rs
@@ -107,8 +107,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"acacia_sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([168, 90, 50]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("acacia"),
 		},
@@ -467,8 +467,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"bamboo_sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([193, 173, 80]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("bamboo"),
 		},
@@ -737,8 +737,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"birch_sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([192, 175, 121]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("birch"),
 		},
@@ -1747,8 +1747,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"cherry_sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([226, 178, 172]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("cherry"),
 		},
@@ -2337,8 +2337,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"crimson_sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([101, 48, 70]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("crimson"),
 		},
@@ -2747,8 +2747,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"dark_oak_sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([66, 43, 20]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("dark_oak"),
 		},
@@ -4537,8 +4537,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"jungle_sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([160, 115, 80]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("jungle"),
 		},
@@ -5487,8 +5487,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"mangrove_sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([117, 54, 48]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("mangrove"),
 		},
@@ -6017,8 +6017,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"oak_sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([162, 130, 78]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("oak"),
 		},
@@ -8167,8 +8167,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([162, 130, 78]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("oak"),
 		},
@@ -8597,8 +8597,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"spruce_sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([114, 84, 48]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("spruce"),
 		},
@@ -9417,8 +9417,8 @@ pub const BLOCK_TYPES: &[(&str, ConstBlockType)] = &[
 		"warped_sign",
 		ConstBlockType {
 			block_color: BlockColor {
-				flags: make_bitflags!(BlockFlag::{Opaque}),
-				color: Color([43, 104, 99]),
+				flags: make_bitflags!(BlockFlag::{}),
+				color: Color([0, 0, 0]),
 			},
 			sign_material: Some("warped"),
 		},
diff --git a/resource/blocks.json b/resource/blocks.json
index ee052bd..f8b0165 100644
--- a/resource/blocks.json
+++ b/resource/blocks.json
@@ -26,7 +26,7 @@
 	"acacia_sapling": {},
 	"acacia_sign": {
 		"sign_material": "acacia",
-		"texture": "acacia_planks"
+		"texture": null
 	},
 	"acacia_slab": {
 		"texture": "acacia_planks"
@@ -114,7 +114,7 @@
 	"bamboo_sapling": null,
 	"bamboo_sign": {
 		"sign_material": "bamboo",
-		"texture": "bamboo_planks"
+		"texture": null
 	},
 	"bamboo_slab": {
 		"texture": "bamboo_planks"
@@ -185,7 +185,7 @@
 	"birch_sapling": {},
 	"birch_sign": {
 		"sign_material": "birch",
-		"texture": "birch_planks"
+		"texture": null
 	},
 	"birch_slab": {
 		"texture": "birch_planks"
@@ -377,7 +377,7 @@
 	"cherry_sapling": null,
 	"cherry_sign": {
 		"sign_material": "cherry",
-		"texture": "cherry_planks"
+		"texture": null
 	},
 	"cherry_slab": {
 		"texture": "cherry_planks"
@@ -496,7 +496,7 @@
 	"crimson_roots": {},
 	"crimson_sign": {
 		"sign_material": "crimson",
-		"texture": "crimson_planks"
+		"texture": null
 	},
 	"crimson_slab": {
 		"texture": "crimson_planks"
@@ -589,7 +589,7 @@
 	"dark_oak_sapling": {},
 	"dark_oak_sign": {
 		"sign_material": "dark_oak",
-		"texture": "dark_oak_planks"
+		"texture": null
 	},
 	"dark_oak_slab": {
 		"texture": "dark_oak_planks"
@@ -921,7 +921,7 @@
 	"jungle_sapling": {},
 	"jungle_sign": {
 		"sign_material": "jungle",
-		"texture": "jungle_planks"
+		"texture": null
 	},
 	"jungle_slab": {
 		"texture": "jungle_planks"
@@ -1095,7 +1095,7 @@
 	},
 	"mangrove_sign": {
 		"sign_material": "mangrove",
-		"texture": "mangrove_planks"
+		"texture": null
 	},
 	"mangrove_slab": {
 		"texture": "mangrove_planks"
@@ -1218,7 +1218,7 @@
 	"oak_sapling": {},
 	"oak_sign": {
 		"sign_material": "oak",
-		"texture": "oak_planks"
+		"texture": null
 	},
 	"oak_slab": {
 		"texture": "oak_planks"
@@ -1671,7 +1671,7 @@
 	"shulker_box": {},
 	"sign": {
 		"sign_material": "oak",
-		"texture": "oak_planks"
+		"texture": null
 	},
 	"skeleton_skull": null,
 	"skeleton_wall_skull": null,
@@ -1764,7 +1764,7 @@
 	"spruce_sapling": {},
 	"spruce_sign": {
 		"sign_material": "spruce",
-		"texture": "spruce_planks"
+		"texture": null
 	},
 	"spruce_slab": {
 		"texture": "spruce_planks"
@@ -1961,7 +1961,7 @@
 	"warped_roots": {},
 	"warped_sign": {
 		"sign_material": "warped",
-		"texture": "warped_planks"
+		"texture": null
 	},
 	"warped_slab": {
 		"texture": "warped_planks"
diff --git a/src/core/common.rs b/src/core/common.rs
index d961ea9..ca6f424 100644
--- a/src/core/common.rs
+++ b/src/core/common.rs
@@ -22,7 +22,7 @@ use crate::{
 ///
 /// Increase when the generation of processed regions from region data changes
 /// (usually because of updated resource data)
-pub const REGION_FILE_META_VERSION: FileMetaVersion = FileMetaVersion(0);
+pub const REGION_FILE_META_VERSION: FileMetaVersion = FileMetaVersion(1);
 
 /// MinedMap map tile data version number
 ///
@@ -34,7 +34,7 @@ pub const MAP_FILE_META_VERSION: FileMetaVersion = FileMetaVersion(0);
 ///
 /// Increase when the generation of lightmap tiles from region data changes
 /// (usually because of updated resource data)
-pub const LIGHTMAP_FILE_META_VERSION: FileMetaVersion = FileMetaVersion(0);
+pub const LIGHTMAP_FILE_META_VERSION: FileMetaVersion = FileMetaVersion(1);
 
 /// MinedMap mipmap data version number
 ///