CODEWITHSUNDEEP
.netlogging.net-corethemesserilog
Notbad
Notbad

Reputation: 6296

Is it possible to change colors in serilog?

I have just integrated Serilog in my dot net core project. It is working really well but I use a dark theme and some logs are really dificult to read. As an example:

enter image description here

This is how I init Serilog:

string environment =  Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
        
LoggerConfiguration loggerConfig = new LoggerConfiguration();
            
if (environment == "Production")
    loggerConfig.MinimumLevel.Information();
                
loggerConfig.MinimumLevel.Override("Microsoft.AspNetCore",
    LogEventLevel.Warning) 
    .Enrich.FromLogContext()
    .WriteTo.Console()
    .WriteTo.File("Logs/app.log");

Is there any way I could change colors to make that black logs white for example?

Upvotes: 15

Views: 18529

Answers (2)

Hedgineering
Hedgineering

Reputation: 21

Somewhat similar issue but I was trying to color the full line based on log levels; image

I figured out how to do it. You can find how I accomplished it here if you're interested: https://github.com/serilog/serilog-sinks-console/issues/35#issuecomment-2577943657

Upvotes: 0

C. Augusto Proiete
C. Augusto Proiete

Reputation: 27828

Yes, the way to change colors when using the Console sink is through themes. You can try one of the built-in ones, or create your own.

The Console sink will colorize output by default:

Colorized Console

Themes can be specified when configuring the sink:

    .WriteTo.Console(theme: AnsiConsoleTheme.Code)

The following built-in themes are available as of this writing:

  • ConsoleTheme.None - no styling
  • SystemConsoleTheme.Literate - styled to replicate Serilog.Sinks.Literate, using the System.Console coloring modes supported on all Windows/.NET targets; this is the default when no theme is specified
  • SystemConsoleTheme.Grayscale - a theme using only shades of gray, white, and black
  • AnsiConsoleTheme.Literate - an ANSI 16-color version of the "literate" theme; we expect to update this to use 256-colors for a more refined look in future
  • AnsiConsoleTheme.Grayscale - an ANSI 256-color version of the "grayscale" theme
  • AnsiConsoleTheme.Code - an ANSI 256-color Visual Studio Code-inspired theme

Adding a new theme is straightforward; examples can be found in the SystemConsoleThemes and AnsiConsoleThemes classes.

Upvotes: 29

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