Merge pull request #126 from Simnico99/ansi-colors

Added Ansi Sixteen (TemplateTheme Sixteen)

Author: nblumhardt

src/Serilog.Expressions/Templates/Themes/TemplateTheme.cs

@@ -34,6 +34,11 @@ public class TemplateTheme
     /// </summary>
     public static TemplateTheme Literate { get; } = TemplateThemes.Literate;
 
+    /// <summary>
+    /// A theme in the style of the original <i>Serilog.Sinks.Literate</i> using only standard 16 terminal colors that will work on light backgrounds.
+    /// </summary>
+    public static TemplateTheme Sixteen { get; } = TemplateThemes.Sixteen;
+
     internal static TemplateTheme None { get; } = new(new Dictionary<TemplateThemeStyle, string>());
 
     readonly Dictionary<TemplateThemeStyle, Style> _styles;
@@ -71,4 +76,4 @@ internal Style GetStyle(TemplateThemeStyle templateThemeStyle)
         _styles.TryGetValue(templateThemeStyle, out var style);
         return style;
     }
-}
+}

src/Serilog.Expressions/Templates/Themes/TemplateThemes.cs

@@ -1,4 +1,4 @@
-// Copyright © Serilog Contributors
+// Copyright © Serilog Contributors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -78,4 +78,25 @@ static class TemplateThemes
             [TemplateThemeStyle.LevelError] = "\x1b[38;5;0197m\x1b[48;5;0238m",
             [TemplateThemeStyle.LevelFatal] = "\x1b[38;5;0197m\x1b[48;5;0238m",
         });
-}
+
+    public static TemplateTheme Sixteen { get; } = new(
+        new Dictionary<TemplateThemeStyle, string>
+        {
+            [TemplateThemeStyle.Text] = string.Empty,
+            [TemplateThemeStyle.SecondaryText] = string.Empty,
+            [TemplateThemeStyle.TertiaryText] = string.Empty,
+            [TemplateThemeStyle.Invalid] = "\x1b[33m",
+            [TemplateThemeStyle.Null] = "\x1b[34m",
+            [TemplateThemeStyle.Name] = string.Empty,
+            [TemplateThemeStyle.String] = "\x1b[36m",
+            [TemplateThemeStyle.Number] = "\x1b[35m",
+            [TemplateThemeStyle.Boolean] = "\x1b[34m",
+            [TemplateThemeStyle.Scalar] = "\x1b[32m",
+            [TemplateThemeStyle.LevelVerbose] = "\x1b[30;1m",
+            [TemplateThemeStyle.LevelDebug] = "\x1b[1m",
+            [TemplateThemeStyle.LevelInformation] = "\x1b[36;1m",
+            [TemplateThemeStyle.LevelWarning] = "\x1b[33;1m",
+            [TemplateThemeStyle.LevelError] = "\x1b[31;1m",
+            [TemplateThemeStyle.LevelFatal] = "\x1b[31;1m",
+        });
+}