diff --git a/GUI/Model/From/GUIDomainSampleVisitor.cpp b/GUI/Model/From/GUIDomainSampleVisitor.cpp
index f79484de254a2ab051b78b77793e138327e0812d..848e6f156a4d08dff35c44cbe3b2d3f2c651658e 100644
--- a/GUI/Model/From/GUIDomainSampleVisitor.cpp
+++ b/GUI/Model/From/GUIDomainSampleVisitor.cpp
@@ -16,7 +16,6 @@
 #include "Base/Const/Units.h"
 #include "GUI/Model/From/FromDomain.h"
 #include "GUI/Model/Material/MaterialItem.h"
-#include "GUI/Model/Material/MaterialItemUtils.h"
 #include "GUI/Model/Material/MaterialModel.h"
 #include "GUI/Model/Sample/FormFactorItems.h"
 #include "GUI/Model/Sample/InterferenceItems.h"
diff --git a/GUI/Model/Job/JobModelFunctions.cpp b/GUI/Model/Job/JobModelFunctions.cpp
index 728affd0dd1807e46c77ca1e7f511374867ac304..e7f99ef7ed3fb615d0d41a87a846e7b35cc20a5b 100644
--- a/GUI/Model/Job/JobModelFunctions.cpp
+++ b/GUI/Model/Job/JobModelFunctions.cpp
@@ -30,7 +30,6 @@
 #include "GUI/Model/Job/JobItemUtils.h"
 #include "GUI/Model/Material/MaterialItem.h"
 #include "GUI/Model/Material/MaterialItemContainer.h"
-#include "GUI/Model/Material/MaterialItemUtils.h"
 #include "GUI/Model/Sample/ItemWithMaterial.h"
 #include "GUI/Model/Sample/MultiLayerItem.h"
 #include "GUI/Util/Error.h"
diff --git a/GUI/Model/Material/MaterialItemUtils.cpp b/GUI/Model/Material/MaterialItemUtils.cpp
deleted file mode 100644
index fb42c1f1a77ec8191d73254f5892b23dfbfb11ef..0000000000000000000000000000000000000000
--- a/GUI/Model/Material/MaterialItemUtils.cpp
+++ /dev/null
@@ -1,18 +0,0 @@
-//  ************************************************************************************************
-//
-//  BornAgain: simulate and fit reflection and scattering
-//
-//! @file      GUI/Model/Material/MaterialItemUtils.cpp
-//! @brief     Implements class MaterialItemUtils
-//!
-//! @homepage  http://www.bornagainproject.org
-//! @license   GNU General Public License v3 or higher (see COPYING)
-//! @copyright Forschungszentrum Jülich GmbH 2018
-//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
-//
-//  ************************************************************************************************
-
-#include "GUI/Model/Material/MaterialItemUtils.h"
-
-#include <deque>
-#include <random>
diff --git a/GUI/Model/Material/MaterialItemUtils.h b/GUI/Model/Material/MaterialItemUtils.h
deleted file mode 100644
index d3c419f37b031571c0f7b2b3eb556d231adbcb6b..0000000000000000000000000000000000000000
--- a/GUI/Model/Material/MaterialItemUtils.h
+++ /dev/null
@@ -1,24 +0,0 @@
-//  ************************************************************************************************
-//
-//  BornAgain: simulate and fit reflection and scattering
-//
-//! @file      GUI/Model/Material/MaterialItemUtils.h
-//! @brief     Defines namespace GUI::MaterialUtil
-//!
-//! @homepage  http://www.bornagainproject.org
-//! @license   GNU General Public License v3 or higher (see COPYING)
-//! @copyright Forschungszentrum Jülich GmbH 2018
-//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
-//
-//  ************************************************************************************************
-
-#ifndef BORNAGAIN_GUI_MODEL_MATERIAL_MATERIALITEMUTILS_H
-#define BORNAGAIN_GUI_MODEL_MATERIAL_MATERIALITEMUTILS_H
-
-#include <QColor>
-
-namespace GUI::MaterialUtil {
-
-} // namespace GUI::MaterialUtil
-
-#endif // BORNAGAIN_GUI_MODEL_MATERIAL_MATERIALITEMUTILS_H
diff --git a/GUI/Model/Material/MaterialModel.cpp b/GUI/Model/Material/MaterialModel.cpp
index 6d502353f1a3272adf0e11c823bc7302c79617b5..80ade671442ab72297e005bbe625aad2f87594c9 100644
--- a/GUI/Model/Material/MaterialModel.cpp
+++ b/GUI/Model/Material/MaterialModel.cpp
@@ -14,8 +14,8 @@
 
 #include "GUI/Model/Material/MaterialModel.h"
 #include "GUI/Model/Material/MaterialItem.h"
-#include "GUI/Model/Material/MaterialItemUtils.h"
 #include "GUI/Model/Material/MaterialModelStore.h"
+#include <QColor>
 #include <QUuid>
 #include <random>
 
diff --git a/GUI/Model/Sample/ItemWithMaterial.cpp b/GUI/Model/Sample/ItemWithMaterial.cpp
index aa3c5848363a93ad7a81da2646c700d2d66f0139..e77158c42eefade5cbeff677bc68ef52e7354eab 100644
--- a/GUI/Model/Sample/ItemWithMaterial.cpp
+++ b/GUI/Model/Sample/ItemWithMaterial.cpp
@@ -17,9 +17,9 @@
 #include "GUI/Model/Job/JobModelFunctions.h"
 #include "GUI/Model/Material/MaterialItem.h"
 #include "GUI/Model/Material/MaterialItemContainer.h"
-#include "GUI/Model/Material/MaterialItemUtils.h"
 #include "GUI/Model/Material/MaterialModel.h"
 #include "GUI/Model/Material/MaterialModelStore.h"
+#include <QColor>
 
 void ItemWithMaterial::setMaterial(const MaterialItem* materialItem)
 {
diff --git a/GUI/Model/Sample/LayerItem.cpp b/GUI/Model/Sample/LayerItem.cpp
index c3574dcb0dbb47fa6f278d967360a4e71deecd6c..f34e9f1c4421db82d16c04d4e691104cbbb1b030 100644
--- a/GUI/Model/Sample/LayerItem.cpp
+++ b/GUI/Model/Sample/LayerItem.cpp
@@ -14,7 +14,6 @@
 
 #include "GUI/Model/Sample/LayerItem.h"
 #include "GUI/Model/Group/GroupInfo.h"
-#include "GUI/Model/Material/MaterialItemUtils.h"
 #include "GUI/Model/Sample/LayerRoughnessItems.h"
 #include "GUI/Model/Sample/MesoCrystalItem.h"
 #include "GUI/Model/Sample/MultiLayerItem.h"
@@ -25,8 +24,9 @@
 #include "GUI/Model/Types/DoubleDescriptor.h"
 #include "GUI/Model/Types/UIntDescriptor.h"
 #include "GUI/Util/Error.h"
-
+#include <QColor>
 #include <boost/polymorphic_cast.hpp>
+
 using boost::polymorphic_cast;
 
 namespace {
diff --git a/GUI/Model/Sample/ParticleItem.cpp b/GUI/Model/Sample/ParticleItem.cpp
index 4c138bbb2e49fb57a0277a0e87b67dd587f40dd8..cd88e0018e78fe9853ac280908dd439bd6ef5f05 100644
--- a/GUI/Model/Sample/ParticleItem.cpp
+++ b/GUI/Model/Sample/ParticleItem.cpp
@@ -17,7 +17,6 @@
 #include "GUI/Model/Job/JobItem.h"
 #include "GUI/Model/Job/JobModelFunctions.h"
 #include "GUI/Model/Material/MaterialItem.h"
-#include "GUI/Model/Material/MaterialItemUtils.h"
 #include "GUI/Model/Sample/FormFactorItems.h"
 #include "GUI/Model/Sample/ParticleCoreShellItem.h"
 #include "GUI/Model/Sample/ParticleLayoutItem.h"
diff --git a/GUI/Model/Sample/SampleModel.cpp b/GUI/Model/Sample/SampleModel.cpp
index 4f89486f06d0f44a8f148a863dbeb743d2d45589..b2071b98ee5e77e2e55105e549fbd4b42bdefd8d 100644
--- a/GUI/Model/Sample/SampleModel.cpp
+++ b/GUI/Model/Sample/SampleModel.cpp
@@ -14,7 +14,6 @@
 
 #include "GUI/Model/Sample/SampleModel.h"
 #include "GUI/Model/Group/PropertyItem.h"
-#include "GUI/Model/Material/MaterialItemUtils.h"
 #include "GUI/Model/Sample/ItemWithMaterial.h"
 #include "GUI/Model/Sample/MultiLayerItem.h"
 #include "GUI/Model/Session/ModelUtils.h"
diff --git a/GUI/View/MaterialEditor/MaterialEditorDialog.cpp b/GUI/View/MaterialEditor/MaterialEditorDialog.cpp
index 66fb2465cfb67ef242e5d33c5c8667d6a307bd0c..6bef3d85162c3295d4a342f7fc157ba88d4c75a3 100644
--- a/GUI/View/MaterialEditor/MaterialEditorDialog.cpp
+++ b/GUI/View/MaterialEditor/MaterialEditorDialog.cpp
@@ -15,7 +15,6 @@
 #include "GUI/View/MaterialEditor/MaterialEditorDialog.h"
 #include "GUI/Application/ApplicationSettings.h"
 #include "GUI/Model/Material/MaterialItem.h"
-#include "GUI/Model/Material/MaterialItemUtils.h"
 #include "GUI/Model/Material/MaterialModel.h"
 #include "GUI/Model/Material/MaterialModelStore.h"
 #include "GUI/Model/Project/ProjectDocument.h"
diff --git a/GUI/View/Tool/DesignerHelper.cpp b/GUI/View/Tool/DesignerHelper.cpp
index 747f84d71f20dc2c203facd09b17dab04ef5d1fb..f43170d333654e0ea094956f90018d3f349375a9 100644
--- a/GUI/View/Tool/DesignerHelper.cpp
+++ b/GUI/View/Tool/DesignerHelper.cpp
@@ -13,7 +13,6 @@
 //  ************************************************************************************************
 
 #include "GUI/View/Tool/DesignerHelper.h"
-#include "GUI/Model/Material/MaterialItemUtils.h"
 #include "GUI/View/Tool/StyleUtils.h"
 #include <QPainter>
 #include <cmath>
diff --git a/Tests/Unit/GUI/TestMaterialModel.cpp b/Tests/Unit/GUI/TestMaterialModel.cpp
index a3a780cbf35f3da492990934db05e4c7c2c196b7..c71d7bff5d3268861568266693f1cd4e7161616a 100644
--- a/Tests/Unit/GUI/TestMaterialModel.cpp
+++ b/Tests/Unit/GUI/TestMaterialModel.cpp
@@ -1,6 +1,5 @@
 #include "GUI/Model/Material/MaterialDataItems.h"
 #include "GUI/Model/Material/MaterialItem.h"
-#include "GUI/Model/Material/MaterialItemUtils.h"
 #include "GUI/Model/Material/MaterialModel.h"
 #include "Tests/GTestWrapper/google_test.h"
 #include <memory>