Ammended, added controller, started inserting logic. using Game.cs just for data.

Lingo/DisplayCharacters.cs

@@ -26,25 +26,11 @@ public class DisplayCharacters
         }
     }
 
-    private string colour;
+    public string Colour { get; set; }
 
-    public string Colour
+    public DisplayCharacters(char letter, string colour)
-    {
-        get { return colour; }
-        set
-        {
-            if (value.ToLower() == "green" || value.ToLower() == "yellow" || value.ToLower() == "black")
-            {
-                colour = value;
-            }
-            else
-            {
-                throw new ArgumentException("Not a valid colour, needs to be green, black, or yellow");
-            }
-        }
-    }
-
-    public DisplayCharacters()
     {
+        Letter = letter;
+        Colour = colour;
     }
 }

Lingo/Game.cs

@@ -7,48 +7,19 @@ namespace Lingo;
 public class Game
 {
     //This should only be the data, not the logic.
-    public int count = 0;
+
-    static Random rnd = new Random();
+    public int Rounds = 0;
-    public static int index = rnd.Next(1, Words.FiveLetterWords.Count);
-    public string solution = Words.FiveLetterWords[index];
     public static bool exit = false;
-    public string attempt;
+    public static Random rnd = new Random();
+    public static int index = rnd.Next(1, Words.FiveLetterWords.Count);
+    public static string solution = Words.FiveLetterWords[index];
+    public static string attempt;
     private DisplayCharacters[] displayArray;
     private List<char> solutionList;
 
-    public void ValidateFiveLetters(string solutionCheck)
-    {
-        exit = false;
-        while (exit == false)
-        {
-            if (solutionCheck.Length != 5)
-            {
-                index = rnd.Next(0, Words.FiveLetterWords.Count);
-                solution = Words.FiveLetterWords[index];
-            }
-            else
-            {
-                exit = true;
-            }
-        }
-    }
 
-    public void ValidateFiveLettersAttempt(string attemptCheck)
+
-    {
+
-        exit = false;
-        while (exit == false)
-        {
-            if (attemptCheck.Length != 5)
-            {
-                attempt = AnsiConsole.Ask<string>("[red]Your word is not exactly 5 letters. Try again.[/]");
-                attemptCheck = attempt;
-            }
-            else
-            {
-                exit = true;
-            }
-        }
-    }
 
     public void checking(string tries)
     {
@@ -57,25 +28,16 @@ public class Game
             if (tries[i] == solution[i])
             {
                 //Green
-                displayArray[i] = new DisplayCharacters();
+                displayArray[i] = new DisplayCharacters(tries[i], DisplayCharacters.green);
-
-                // try
-                // {
-                //     displayArray[i].Colour = "blue";
-                // }
-                // catch (ArgumentException e)
-                // {
-                //     displayArray[i].Colour = "green";
-                // }
-                displayArray[i].Colour = DisplayCharacters.green;
-                displayArray[i].Letter = tries[i];
             }
+
             else if (solution.Contains(tries[i]))
             {
                 //Yellow
                 displayArray[i].Colour = DisplayCharacters.yellow;
                 displayArray[i].Letter = tries[i];
             }
+
             else
             {
                 // black

Lingo/GameController.cs

@@ -0,0 +1,40 @@
+namespace Lingo;
+using Spectre.Console;
+
+
+public class GameController
+{
+    public void ValidateFiveLettersAttempt(string attemptCheck)
+    {
+        Game.exit = false;
+        while (Game.exit == false)
+        {
+            if (attemptCheck.Length != 5)
+            {
+                Game.attempt = AnsiConsole.Ask<string>("[red]Your word is not exactly 5 letters. Try again.[/]");
+                attemptCheck = Game.attempt;
+            }
+            else
+            {
+                Game.exit = true;
+            }
+        }
+    }
+
+    public void ValidateFiveLetters(string solutionCheck)
+    {
+        Game.exit = false;
+        while (Game.exit == false)
+        {
+            if (solutionCheck.Length != 5)
+            {
+                Game.index = Game.rnd.Next(0, Words.FiveLetterWords.Count);
+                Game.solution = Words.FiveLetterWords[Game.index];
+            }
+            else
+            {
+                Game.exit = true;
+            }
+        }
+    }
+}

Lingo/Play.cs

@@ -1,6 +0,0 @@
-namespace Lingo;
-
-public class Play
-{
-    //Put the logic here, methods. Controlling the game loop.
-}

Lingo/Program.cs

@@ -6,32 +6,6 @@ class Program
 {
     static void Main(string[] args)
     {
-        //Make a view class instead of stuffing it here.
+        SpectreGame game = new SpectreGame();
-        // Game controller could have the game loop? try this.
-        // Also an input controller, instead of putting it in view or others.
-        bool isRunning = true;
-
-
-        AnsiConsole.Clear();
-
-        string userSelection = AnsiConsole.Prompt(
-            new SelectionPrompt<string>()
-                .Title("Choose play or quit ")
-                .AddChoices
-                (
-                    "1. Play Lingo",
-                    "2. Quit"
-                )
-        );
-        switch (userSelection)
-        {
-            case "1. Play Lingo":
-                Game game = new Game();
-
-                break;
-            case "2. Quit":
-
-                break;
-        }
     }
 }

Lingo/SpectreGame.cs

@@ -0,0 +1,36 @@
+namespace Lingo;
+
+using Spectre.Console;
+
+public class SpectreGame
+{
+    //Make a view class instead of stuffing it here.
+    // Game controller could have the game loop? try this.
+    // Also an input controller, instead of putting it in view or others.
+
+    public SpectreGame()
+    {
+        bool isRunning = true;
+        AnsiConsole.Clear();
+
+        string userSelection = AnsiConsole.Prompt(
+            new SelectionPrompt<string>()
+                .Title("Choose play or quit ")
+                .AddChoices
+                (
+                    "1. Play Lingo",
+                    "2. Quit"
+                )
+        );
+        switch (userSelection)
+        {
+            case "1. Play Lingo":
+                Game game = new Game();
+
+                break;
+            case "2. Quit":
+                isRunning = false;
+                break;
+        }
+    }
+}