diff --git a/DsmSuite.DsmViewer.View/Matrix/MatrixCellsView.cs b/DsmSuite.DsmViewer.View/Matrix/MatrixCellsView.cs
index eea1bd6..80e0b0e 100644
--- a/DsmSuite.DsmViewer.View/Matrix/MatrixCellsView.cs
+++ b/DsmSuite.DsmViewer.View/Matrix/MatrixCellsView.cs
@@ -5,16 +5,19 @@
 
 namespace DsmSuite.DsmViewer.View.Matrix
 {
+    /// <summary>
+    /// The view for the square block of cells in a matrix.
+    /// </summary>
     public class MatrixCellsView : MatrixFrameworkElement
     {
         private MatrixViewModel _viewModel;
         private readonly MatrixTheme _theme;
-        private Rect _rect;
+        private Rect _rect;     // Area of the cell that is being rendered (reused)
         private int? _hoveredRow;
         private int? _hoveredColumn;
-        private readonly double _pitch;
-        private readonly double _offset;
-        private readonly double _verticalTextOffset = 16.0;
+        private readonly double _pitch;     // Distance between the same points in neighbouring cells
+        private readonly double _offset;    // Distance between header and first cell (hor/ver)
+        private readonly double _verticalTextOffset = 11.0; // Distance between top of cell and baseline of text
 
         public MatrixCellsView()
         {
@@ -86,6 +89,9 @@ protected override void OnRender(DrawingContext dc)
         {
             if (_viewModel != null)
             {
+                SolidColorBrush weightBrush = _theme.CellWeightColor;
+                Rect weightRect = new Rect(0, 0, _theme.MatrixCellSize, 0.5 * _theme.MatrixCellSize);
+
                 int matrixSize = _viewModel.MatrixSize;
                 for (int row = 0; row < matrixSize; row++)
                 {
@@ -106,6 +112,13 @@ protected override void OnRender(DrawingContext dc)
                         int weight = _viewModel.CellWeights[row][column];
                         if (weight > 0)
                         {
+                            //---- Weight as a filled block
+                            weightRect.X = _rect.X;
+                            weightRect.Y = _rect.Y + 0.5 * _rect.Height;
+                            weightRect.Width = _theme.MatrixCellSize * _viewModel.WeightPercentiles[row][column];
+                            dc.DrawRectangle(weightBrush, null, weightRect);
+
+                            //---- Weight as a number
                             char infinity = '\u221E';
                             string content = weight > 9999 ? infinity.ToString() : weight.ToString();
 
@@ -116,7 +129,7 @@ protected override void OnRender(DrawingContext dc)
                                 X = (column * _pitch) + (_pitch - textWidth) / 2,
                                 Y = (row * _pitch) + _verticalTextOffset
                             };
-                            DrawText(dc, content, location, _theme.TextColor,_rect.Width - _theme.SpacingWidth);
+                            DrawText(dc, content, location, _theme.TextColor, _rect.Width - _theme.SpacingWidth);
                         }
                     }
                 }
diff --git a/DsmSuite.DsmViewer.View/Matrix/MatrixTheme.cs b/DsmSuite.DsmViewer.View/Matrix/MatrixTheme.cs
index c7d55d5..732b588 100644
--- a/DsmSuite.DsmViewer.View/Matrix/MatrixTheme.cs
+++ b/DsmSuite.DsmViewer.View/Matrix/MatrixTheme.cs
@@ -18,6 +18,7 @@ public MatrixTheme(FrameworkElement frameworkElement)
             MatrixHeaderHeight = (double)_frameworkElement.FindResource("MatrixHeaderHeight");
             MatrixMetricsViewWidth = (double)_frameworkElement.FindResource("MatrixMetricsViewWidth");
             TextColor = (SolidColorBrush)_frameworkElement.FindResource("TextColor");
+            CellWeightColor = (SolidColorBrush)_frameworkElement.FindResource("CellWeightColor");
             MatrixColorConsumer = (SolidColorBrush)_frameworkElement.FindResource("MatrixColorConsumer");
             MatrixColorProvider = (SolidColorBrush)_frameworkElement.FindResource("MatrixColorProvider");
             MatrixColorMatch = (SolidColorBrush)_frameworkElement.FindResource("MatrixColorMatch");
@@ -51,6 +52,7 @@ public MatrixTheme(FrameworkElement frameworkElement)
         public double MatrixHeaderHeight { get; }
         public double MatrixMetricsViewWidth { get; }
         public SolidColorBrush TextColor { get; }
+        public SolidColorBrush CellWeightColor { get; }
         public SolidColorBrush MatrixColorConsumer { get; }
         public SolidColorBrush MatrixColorProvider { get; }
         public SolidColorBrush MatrixColorMatch { get; }
diff --git a/DsmSuite.DsmViewer.View/Resources/Themes/DarkTheme.xaml b/DsmSuite.DsmViewer.View/Resources/Themes/DarkTheme.xaml
index 455d92e..92668c5 100644
--- a/DsmSuite.DsmViewer.View/Resources/Themes/DarkTheme.xaml
+++ b/DsmSuite.DsmViewer.View/Resources/Themes/DarkTheme.xaml
@@ -28,6 +28,8 @@
     <SolidColorBrush x:Key="MatrixColorMatch" po:Freeze="True">#ff0000</SolidColorBrush>
     <SolidColorBrush x:Key="MatrixColorBookmark" po:Freeze="True">#00ff00</SolidColorBrush>
 
+    <SolidColorBrush x:Key="CellWeightColor" po:Freeze="True">#FFFFFF</SolidColorBrush>
+
     <sys:Double x:Key="HighlightFactorHovered" >1.1</sys:Double>
     <sys:Double x:Key="HighlightFactorSelected" >1.2</sys:Double>
 </ResourceDictionary>
\ No newline at end of file
diff --git a/DsmSuite.DsmViewer.View/Resources/Themes/LightTheme.xaml b/DsmSuite.DsmViewer.View/Resources/Themes/LightTheme.xaml
index d9b664d..6a48396 100644
--- a/DsmSuite.DsmViewer.View/Resources/Themes/LightTheme.xaml
+++ b/DsmSuite.DsmViewer.View/Resources/Themes/LightTheme.xaml
@@ -28,6 +28,8 @@
     <SolidColorBrush x:Key="MatrixColorMatch" po:Freeze="True">#ff0000</SolidColorBrush>
     <SolidColorBrush x:Key="MatrixColorBookmark" po:Freeze="True">#00ff00</SolidColorBrush>
 
+    <SolidColorBrush x:Key="CellWeightColor" po:Freeze="True">#606060</SolidColorBrush>
+
     <sys:Double x:Key="HighlightFactorHovered" >1.1</sys:Double>
     <sys:Double x:Key="HighlightFactorSelected" >1.2</sys:Double>
 </ResourceDictionary>
\ No newline at end of file
diff --git a/DsmSuite.DsmViewer.View/Resources/Themes/PastelTheme.xaml b/DsmSuite.DsmViewer.View/Resources/Themes/PastelTheme.xaml
index 59dbb3e..d105dd5 100644
--- a/DsmSuite.DsmViewer.View/Resources/Themes/PastelTheme.xaml
+++ b/DsmSuite.DsmViewer.View/Resources/Themes/PastelTheme.xaml
@@ -28,6 +28,8 @@
     <SolidColorBrush x:Key="MatrixColorMatch" po:Freeze="True">#ff0000</SolidColorBrush>
     <SolidColorBrush x:Key="MatrixColorBookmark" po:Freeze="True">#00ff00</SolidColorBrush>
 
+    <SolidColorBrush x:Key="CellWeightColor" po:Freeze="True">#606060</SolidColorBrush>
+
     <sys:Double x:Key="HighlightFactorHovered" >1.1</sys:Double>
     <sys:Double x:Key="HighlightFactorSelected" >1.2</sys:Double>
 </ResourceDictionary>
\ No newline at end of file
diff --git a/DsmSuite.DsmViewer.ViewModel/Matrix/MatrixViewModel.cs b/DsmSuite.DsmViewer.ViewModel/Matrix/MatrixViewModel.cs
index 98a44c6..044cd99 100644
--- a/DsmSuite.DsmViewer.ViewModel/Matrix/MatrixViewModel.cs
+++ b/DsmSuite.DsmViewer.ViewModel/Matrix/MatrixViewModel.cs
@@ -7,6 +7,7 @@
 using DsmSuite.DsmViewer.Model.Interfaces;
 using DsmSuite.DsmViewer.ViewModel.Main;
 using DsmSuite.DsmViewer.ViewModel.Lists;
+using System.Security.RightsManagement;
 
 namespace DsmSuite.DsmViewer.ViewModel.Matrix
 {
@@ -35,6 +36,9 @@ public class MatrixViewModel : ViewModelBase, IMatrixViewModel
         private int? _selectedConsumerId;
         private int? _selectedProviderId;
 
+        private const int _nrWeightBuckets = 10; // Number of buckets (quantiles) for grouping cell weights.
+        private List<List<double>> _weightPercentiles;  // The weight bucket for every cell as a percentile
+
         private ElementToolTipViewModel _columnHeaderTooltipViewModel;
         private CellToolTipViewModel _cellTooltipViewModel;
 
@@ -187,6 +191,13 @@ public ObservableCollection<ElementTreeItemViewModel> ElementViewModelTree
         public IReadOnlyList<int> ColumnElementIds => _columnElementIds;
         public IReadOnlyList<IList<MatrixColor>> CellColors => _cellColors;
         public IReadOnlyList<IReadOnlyList<int>> CellWeights => _cellWeights;
+        /// <summary>
+        /// The weight percentile for every cell as a number between 0 and 1.
+        /// These are not actual percentiles, but quantiles with <c>_nrWeightBuckets"</c> buckets,
+        /// where bucket 0 is reserved for cells with weight 0.
+        /// </summary>
+        public IReadOnlyList<IReadOnlyList<double>> WeightPercentiles => _weightPercentiles;
+        
         public IReadOnlyList<string> Metrics => _metrics;
 
         public double ZoomLevel
@@ -540,11 +551,18 @@ private void DefineColumnContent()
             }
         }
 
+        /// <summary>
+        /// For every cell, set its weight and its weight bucket.
+        /// </summary>
         private void DefineCellContent()
         {
-            _cellWeights = new List<List<int>>();
+            List<int> sortedWeights = new List<int>();
+            List<int> buckets = new List<int>(_nrWeightBuckets);
+
             int matrixSize = _elementViewModelLeafs.Count;
 
+            //---- Set weight for every cell
+            _cellWeights = new List<List<int>>();
             for (int row = 0; row < matrixSize; row++)
             {
                 _cellWeights.Add(new List<int>());
@@ -554,10 +572,41 @@ private void DefineCellContent()
                     IDsmElement provider = _elementViewModelLeafs[row].Element;
                     int weight = _application.GetDependencyWeight(consumer, provider);
                     _cellWeights[row].Add(weight);
+                    if (weight > 0)
+                        sortedWeights.Add(weight);
+                }
+            }
+
+            //---- Set up weight buckets
+            buckets.Add(0);
+            if (sortedWeights.Count > 0)
+            {
+                sortedWeights.Sort();
+                int stepSize = sortedWeights.Count / _nrWeightBuckets;
+                for (int i = 1; i < _nrWeightBuckets; i++)
+                {
+                    buckets.Add(sortedWeights[i * stepSize]);
+                }
+            }
+
+            //---- Assign every cell its weight percentile
+            _weightPercentiles = new List<List<double>>();
+            for (int row = 0; row < matrixSize; row++)
+            {
+                _weightPercentiles.Add(new List<double>());
+                for (int column = 0; column < matrixSize; column++)
+                {
+                    int i = buckets.Count-1;
+                    while (_cellWeights[row][column] < buckets[i])
+                        i--;
+                    if (i == 0)     // Bucket 0 is for weight 0 exclusively
+                        i = 1;
+                    _weightPercentiles[row].Add(i / (double) _nrWeightBuckets);
                 }
             }
         }
 
+
         private void DefineMetrics()
         {
             _metrics = new List<string>();