diff --git a/src/gamedata/textures/texturemanager.cpp b/src/gamedata/textures/texturemanager.cpp
index 589f787b3..9a7685654 100644
--- a/src/gamedata/textures/texturemanager.cpp
+++ b/src/gamedata/textures/texturemanager.cpp
@@ -689,74 +689,6 @@ void FTextureManager::AddHiresTextures (int wadnum)
 //
 //==========================================================================
 
-void FTextureManager::ParseColorization(FScanner& sc)
-{
-	TextureManipulation tm = {};
-	tm.ModulateColor = 0x01ffffff;
-	sc.MustGetString();
-	FName cname = sc.String;
-	sc.MustGetToken('{');
-	while (!sc.CheckToken('}'))
-	{
-		sc.MustGetString();
-		if (sc.Compare("DesaturationFactor"))
-		{
-			sc.MustGetFloat();
-			tm.DesaturationFactor = (float)sc.Float;
-		}
-		else if (sc.Compare("AddColor"))
-		{
-			sc.MustGetString();
-			tm.AddColor = (tm.AddColor & 0xff000000) | (V_GetColor(NULL, sc) & 0xffffff);
-		}
-		else if (sc.Compare("ModulateColor"))
-		{
-			sc.MustGetString();
-			tm.ModulateColor = V_GetColor(NULL, sc) & 0xffffff;
-			if (sc.CheckToken(','))
-			{
-				sc.MustGetNumber();
-				tm.ModulateColor.a = sc.Number;
-			}
-			else tm.ModulateColor.a = 1;
-		}
-		else if (sc.Compare("BlendColor"))
-		{
-			sc.MustGetString();
-			tm.BlendColor = V_GetColor(NULL, sc) & 0xffffff;
-			sc.MustGetToken(',');
-			sc.MustGetString();
-			static const char* opts[] = { "none", "alpha", "screen", "overlay", "hardlight", nullptr };
-			tm.AddColor.a = (tm.AddColor.a & ~TextureManipulation::BlendMask) | sc.MustMatchString(opts);
-			if (sc.Compare("alpha"))
-			{
-				sc.MustGetToken(',');
-				sc.MustGetFloat();
-				tm.BlendColor.a = (uint8_t)(clamp(sc.Float, 0., 1.) * 255);
-			}
-		}
-		else if (sc.Compare("invert"))
-		{
-			tm.AddColor.a |= TextureManipulation::InvertBit;
-		}
-		else sc.ScriptError("Unknown token '%s'", sc.String);
-	}
-	if (tm.CheckIfEnabled())
-	{
-		tmanips.Insert(cname, tm);
-	}
-	else
-	{
-		tmanips.Remove(cname);
-	}
-
-}
-//==========================================================================
-//
-// Loads the HIRESTEX lumps
-//
-//==========================================================================
-
 void FTextureManager::LoadTextureDefs(int wadnum, const char *lumpname, FMultipatchTextureBuilder &build)
 {
 	int remapLump, lastLump;
@@ -907,10 +839,6 @@ void FTextureManager::ParseTextureDef(int lump, FMultipatchTextureBuilder &build
 		{
 			build.ParseTexture(sc, ETextureType::MiscPatch);
 		}
-		else if (sc.Compare("colorization"))
-		{
-			ParseColorization(sc);
-		}
 		else if (sc.Compare("#include"))
 		{
 			sc.MustGetString();
diff --git a/src/gamedata/textures/textures.h b/src/gamedata/textures/textures.h
index 416d9e719..1db2529a4 100644
--- a/src/gamedata/textures/textures.h
+++ b/src/gamedata/textures/textures.h
@@ -631,7 +631,14 @@ public:
 	{
 		return tmanips.CheckKey(name);
 	}
-
+	void InsertTextureManipulation(FName cname, TextureManipulation tm)
+	{
+		tmanips.Insert(cname, tm);
+	}
+	void RemoveTextureManipulation(FName cname)
+	{
+		tmanips.Remove(cname);
+	}
 
 private:
 
diff --git a/src/r_data/gldefs.cpp b/src/r_data/gldefs.cpp
index 8f860f9e7..a08ee8f6e 100644
--- a/src/r_data/gldefs.cpp
+++ b/src/r_data/gldefs.cpp
@@ -51,6 +51,7 @@
 void AddLightDefaults(FLightDefaults *defaults, double attnFactor);
 void AddLightAssociation(const char *actor, const char *frame, const char *light);
 void InitializeActorLights(TArray<FLightAssociation> &LightAssociations);
+void ParseColorization(FScanner& sc);
 
 TArray<UserShaderDesc> usershaders;
 extern TDeletingArray<FLightDefaults *> LightDefaults;
@@ -194,6 +195,7 @@ static const char *CoreKeywords[]=
    "#include",
    "material",
    "lightsizefactor",
+   "colorization",
    nullptr
 };
 
@@ -218,6 +220,7 @@ enum
    TAG_INCLUDE,
    TAG_MATERIAL,
    TAG_LIGHTSIZEFACTOR,
+   TAG_COLORIZATION,
 };
 
 //==========================================================================
@@ -1648,6 +1651,68 @@ class GLDefsParser
 			}
 		}
 	}
+
+	void ParseColorization(FScanner& sc)
+	{
+		TextureManipulation tm = {};
+		tm.ModulateColor = 0x01ffffff;
+		sc.MustGetString();
+		FName cname = sc.String;
+		sc.MustGetToken('{');
+		while (!sc.CheckToken('}'))
+		{
+			sc.MustGetString();
+			if (sc.Compare("DesaturationFactor"))
+			{
+				sc.MustGetFloat();
+				tm.DesaturationFactor = (float)sc.Float;
+			}
+			else if (sc.Compare("AddColor"))
+			{
+				sc.MustGetString();
+				tm.AddColor = (tm.AddColor & 0xff000000) | (V_GetColor(NULL, sc) & 0xffffff);
+			}
+			else if (sc.Compare("ModulateColor"))
+			{
+				sc.MustGetString();
+				tm.ModulateColor = V_GetColor(NULL, sc) & 0xffffff;
+				if (sc.CheckToken(','))
+				{
+					sc.MustGetNumber();
+					tm.ModulateColor.a = sc.Number;
+				}
+				else tm.ModulateColor.a = 1;
+			}
+			else if (sc.Compare("BlendColor"))
+			{
+				sc.MustGetString();
+				tm.BlendColor = V_GetColor(NULL, sc) & 0xffffff;
+				sc.MustGetToken(',');
+				sc.MustGetString();
+				static const char* opts[] = { "none", "alpha", "screen", "overlay", "hardlight", nullptr };
+				tm.AddColor.a = (tm.AddColor.a & ~TextureManipulation::BlendMask) | sc.MustMatchString(opts);
+				if (sc.Compare("alpha"))
+				{
+					sc.MustGetToken(',');
+					sc.MustGetFloat();
+					tm.BlendColor.a = (uint8_t)(clamp(sc.Float, 0., 1.) * 255);
+				}
+			}
+			else if (sc.Compare("invert"))
+			{
+				tm.AddColor.a |= TextureManipulation::InvertBit;
+			}
+			else sc.ScriptError("Unknown token '%s'", sc.String);
+		}
+		if (tm.CheckIfEnabled())
+		{
+			TexMan.InsertTextureManipulation(cname, tm);
+		}
+		else
+		{
+			TexMan.RemoveTextureManipulation(cname);
+		}
+	}
 	
 
 public:
@@ -1741,6 +1806,9 @@ public:
 					*/
 				}
 				break;
+			case TAG_COLORIZATION:
+				ParseColorization(sc);
+				break;
 			default:
 				sc.ScriptError("Error parsing defs.  Unknown tag: %s.\n", sc.String);
 				break;