diff --git a/Sources/Model/Dice/Faces/AbstractDieFace.cs b/Sources/Model/Dice/Faces/AbstractDieFace.cs
index a3f5364..ae09083 100644
--- a/Sources/Model/Dice/Faces/AbstractDieFace.cs
+++ b/Sources/Model/Dice/Faces/AbstractDieFace.cs
@@ -14,7 +14,7 @@ namespace Model.Dice.Faces
         /// <br/>
         /// USE GetPracticalValue for a Value specific to face type
         /// </summary>
-        protected abstract int Value { get; }
+        public int Value { get; protected set; }
 
         public abstract object GetPracticalValue();
 
diff --git a/Sources/Model/Dice/Faces/ColorDieFace.cs b/Sources/Model/Dice/Faces/ColorDieFace.cs
index 2d7e450..fc7f7a0 100644
--- a/Sources/Model/Dice/Faces/ColorDieFace.cs
+++ b/Sources/Model/Dice/Faces/ColorDieFace.cs
@@ -8,22 +8,34 @@ namespace Model.Dice.Faces
 {
     public class ColorDieFace : AbstractDieFace
     {
+        private static readonly int MAX_HEX = 16777215;
         /// <summary>
-        /// a decimal representation of the hex (...representation of the color)
-        /// </summary>
-        protected override int Value { get; }
-
-        /// <summary>
-        /// accepts hex strings like "ffbb84" ([RRGGBB])
+        /// accepts hex strings like "ffbb84" and "#af567d" ([RRGGBB])
         /// </summary>
         /// <param name="hexValueString">hex string</param>
         public ColorDieFace(string hexValueString)
         {
             // https://stackoverflow.com/questions/1139957/convert-integer-to-hexadecimal-and-back-again
+            // we remove any initial '#' before parsing
+            if (hexValueString.StartsWith('#'))
+            {
+                hexValueString = hexValueString[1..];
+            }
 
-            // if style is ("f0b"), this constructor can develop it to "ff00bb" before doing the job
+            // if style is "f0b", this constructor can develop it to "ff00bb" before doing the job
+            if (hexValueString.Length == 3)
+            {
+                foreach (char ch in hexValueString)
+                {
+                    // replace one instance of the char by two instances of it
+                    hexValueString = hexValueString.Replace(new string(ch, 1), new string(ch, 2));
+                }
+            }
+            int result = int.Parse(hexValueString, System.Globalization.NumberStyles.HexNumber);
 
-            Value = int.Parse(hexValueString, System.Globalization.NumberStyles.HexNumber);
+            if (result < 0) Value = 0;
+            else if (result > MAX_HEX) Value = MAX_HEX;
+            else Value = result;
         }
 
         /// <summary>
@@ -31,13 +43,11 @@ namespace Model.Dice.Faces
         /// </summary>
         /// <param name="decimalValue"></param>
         public ColorDieFace(int decimalValue)
-        {
-            Value = decimalValue;
-        }
+            : this(decimalValue.ToString())
+        { }
         public override object GetPracticalValue()
         {
             // https://stackoverflow.com/questions/1139957/convert-integer-to-hexadecimal-and-back-again
-            // maybe prepend it with a "#"...
             return Value.ToString("X6").Insert(0, "#");
         }
     }
diff --git a/Sources/Model/Dice/Faces/ImageDieFace.cs b/Sources/Model/Dice/Faces/ImageDieFace.cs
index 966832c..84d472b 100644
--- a/Sources/Model/Dice/Faces/ImageDieFace.cs
+++ b/Sources/Model/Dice/Faces/ImageDieFace.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -8,18 +9,9 @@ namespace Model.Dice.Faces
 {
     public class ImageDieFace : AbstractDieFace
     {
-        /// <summary>
-        /// an image URL code, to find the image URL (to find the image)
-        /// </summary>
-        protected override int Value { get; }
-
         public ImageDieFace(string uri)
         {
-            /*parse an int after the last occurrence of "/" ? */
-            string resultString = uri[(uri.LastIndexOf('/') + 1)..];
-            /* !! here we should make sure to remove any ".jpg" etc, if there was one in the uri*/
-            int result = int.Parse(resultString);
-            Value = result;
+            Value = int.Parse(Path.GetFileNameWithoutExtension(uri));
         }
 
         public ImageDieFace(int code)
@@ -29,7 +21,7 @@ namespace Model.Dice.Faces
 
         public override object GetPracticalValue()
         {
-            return string.Format("Assets/images/{0}", Value);
+            return string.Format($"Assets/images/{Value}.png");
         }
     }
 }
diff --git a/Sources/Model/Dice/Faces/NumberDieFace.cs b/Sources/Model/Dice/Faces/NumberDieFace.cs
index 0e236a9..5aa7adf 100644
--- a/Sources/Model/Dice/Faces/NumberDieFace.cs
+++ b/Sources/Model/Dice/Faces/NumberDieFace.cs
@@ -8,7 +8,6 @@ namespace Model.Dice.Faces
 {
     public class NumberDieFace : AbstractDieFace
     {
-        protected override int Value { get; }
         public NumberDieFace(int value)
         {
             Value = value;
diff --git a/Sources/Tests/Model_UTs/GameTest.cs b/Sources/Tests/Model_UTs/GameTest.cs
index abd259b..5a18c07 100644
--- a/Sources/Tests/Model_UTs/GameTest.cs
+++ b/Sources/Tests/Model_UTs/GameTest.cs
@@ -383,8 +383,8 @@ namespace Tests.Model_UTs
                 "\nPlayers: Alice Bob" +
                 "\nNext: Alice" +
                 "\nLog:" +
-                "\n\t" + date + " " + time + " -- Alice rolled: 4 Assets/images/40 #A00FA0" +
-                "\n\t" + date + " " + time + " -- Bob rolled: 3 Assets/images/20 #A00BB8" +
+                "\n\t" + date + " " + time + " -- Alice rolled: 4 Assets/images/40.png #A00FA0" +
+                "\n\t" + date + " " + time + " -- Bob rolled: 3 Assets/images/20.png #A00BB8" +
                 "\n";
             string actual = game.ToString();