Use standard ansi color codes

src/Microsoft.Extensions.Logging.Console/Internal/AnsiLogConsole.cs

@@ -37,12 +37,12 @@ public void Write(string message, ConsoleColor? background, ConsoleColor? foregr
 
             if (foreground.HasValue)
             {
-                _outputBuilder.Append("\x1B[39m"); // reset to default foreground color
+                _outputBuilder.Append("\x1B[39m\x1B[22m"); // reset to default foreground color
             }
 
             if (background.HasValue)
             {
-                _outputBuilder.Append("\x1B[0m"); // reset to the background color
+                _outputBuilder.Append("\x1B[49m"); // reset to the background color
             }
         }
 
@@ -79,21 +79,21 @@ private static string GetForegroundColorEscapeCode(ConsoleColor color)
                 case ConsoleColor.Gray:
                     return "\x1B[37m";
                 case ConsoleColor.Red:
-                    return "\x1B[91m";
+                    return "\x1B[1m\x1B[31m";
                 case ConsoleColor.Green:
-                    return "\x1B[92m";
+                    return "\x1B[1m\x1B[32m";
                 case ConsoleColor.Yellow:
-                    return "\x1B[93m";
+                    return "\x1B[1m\x1B[33m";
                 case ConsoleColor.Blue:
-                    return "\x1B[94m";
+                    return "\x1B[1m\x1B[34m";
                 case ConsoleColor.Magenta:
-                    return "\x1B[95m";
+                    return "\x1B[1m\x1B[35m";
                 case ConsoleColor.Cyan:
-                    return "\x1B[96m";
+                    return "\x1B[1m\x1B[36m";
                 case ConsoleColor.White:
-                    return "\x1B[97m";
+                    return "\x1B[1m\x1B[37m";
                 default:
-                    return "\x1B[39m"; // default foreground color
+                    return "\x1B[39m\x1B[22m"; // default foreground color
             }
         }
 
@@ -102,23 +102,23 @@ private static string GetBackgroundColorEscapeCode(ConsoleColor color)
             switch (color)
             {
                 case ConsoleColor.Black:
-                    return "\x1B[100m";
+                    return "\x1B[40m";
                 case ConsoleColor.Red:
-                    return "\x1B[101m";
+                    return "\x1B[41m";
                 case ConsoleColor.Green:
-                    return "\x1B[102m";
+                    return "\x1B[42m";
                 case ConsoleColor.Yellow:
-                    return "\x1B[103m";
+                    return "\x1B[43m";
                 case ConsoleColor.Blue:
-                    return "\x1B[104m";
+                    return "\x1B[44m";
                 case ConsoleColor.Magenta:
-                    return "\x1B[105m";
+                    return "\x1B[45m";
                 case ConsoleColor.Cyan:
-                    return "\x1B[106m";
+                    return "\x1B[46m";
                 case ConsoleColor.White:
-                    return "\x1B[107m";
+                    return "\x1B[47m";
                 default:
-                    return "\x1B[0m"; // Use default background color
+                    return "\x1B[49m"; // Use default background color
             }
         }
     }

test/Microsoft.Extensions.Logging.Test/AnsiLogConsoleTest.cs

@@ -87,7 +87,7 @@ public void WritesMessage_WithForegroundEscapeCode_AndNoBackgroundColorSpecified
             var message = "Request received";
             var expectedMessage = GetForegroundColorEscapeCode(ConsoleColor.DarkGreen)
                 + message
-                + "\x1B[39m"; //resets foreground color
+                + "\x1B[39m\x1B[22m"; //resets foreground color
 
             // Act
             console.WriteLine(message, background: null, foreground: ConsoleColor.DarkGreen);
@@ -106,7 +106,7 @@ public void WritesMessage_WithBackgroundEscapeCode_AndNoForegroundColorSpecified
             var message = "Request received";
             var expectedMessage = GetBackgroundColorEscapeCode(ConsoleColor.Red)
                 + message
-                + "\x1B[0m"; //resets background color
+                + "\x1B[49m"; //resets background color
 
             // Act
             console.WriteLine(message, background: ConsoleColor.Red, foreground: null);
@@ -126,8 +126,8 @@ public void WriteMessage_InOrder_WhenBothForegroundOrBackgroundColorsSpecified()
             var expectedMessage = GetBackgroundColorEscapeCode(ConsoleColor.Red)
                 + GetForegroundColorEscapeCode(ConsoleColor.DarkGreen)
                 + "Request received"
-                + "\x1B[39m" //resets foreground color
-                + "\x1B[0m" //resets background color
+                + "\x1B[39m\x1B[22m" //resets foreground color
+                + "\x1B[49m" //resets background color
                 + Environment.NewLine;
 
             // Act
@@ -166,10 +166,8 @@ private static string GetForegroundColorEscapeCode(ConsoleColor color)
                     return "\x1B[33m";
                 case ConsoleColor.Gray:
                     return "\x1B[37m";
-                case ConsoleColor.White:
-                    return "\x1B[97m";
                 default:
-                    return "\x1B[37m";
+                    return "\x1B[39m";
             }
         }
 
@@ -178,7 +176,7 @@ private static string GetBackgroundColorEscapeCode(ConsoleColor color)
             switch (color)
             {
                 case ConsoleColor.Red:
-                    return "\x1B[101m";
+                    return "\x1B[41m";
                 default:
                     return "\x1B[49m";
             }