Settings

Customizing Color Scheme

Syntax highlighting color scheme for files opened with .log plugin can be customized to match personal preferences. To set custom colors and styles for log file elements such as timestamps, log levels, and message constructs:

1. Open the Color Scheme settings:
   • Navigate to Settings -> Editor -> Color Scheme -> File Types
   • Select Log Files from the list of file types
2. Adjust specific colors for log elements:
   • In the Logs color scheme settings, you will see options for various log elements such as:
     • Log Levels (for example INFO, WARN, ERROR)
     • Timestamps, Category, Context id
     • ANSI Color Codes (foreground and background only)
   • For each element, foreground, background, and font style can be customized. For ANSI codes only foreground and background colors are relevant.
   • Click Apply and OK to save your changes. Changes apply immediately.

File Type Association

By default, .log plugin is configured to support these log file name patterns: *.log;*.err;*.out;*.log.txt. To associate additional log file name patterns so they are viewed by .log plugin, update file type settings:

1. Open Find Action (Cmd+Shift+A | Ctrl+Shift+A) -> search for File Types
2. Or open Settings (Cmd+, | Ctrl+Alt+S) -> File Types
3. Under Recognized File Types -> Logs -> add file name patterns

ANSI Escape Codes

When a log file contains ANSI escape codes, .log plugin applies text styling according to those codes and hides the raw escape sequences for a cleaner view. Files opened with ANSI styling are read-only.

This behavior can be toggled per file when relevant - see Display Transformation.

JSON Console Logs

JSON console-log destructuring does not currently have a dedicated persisted option under the Settings UI. The feature is controlled from the console itself and follows the runtime or session behavior described in Console Output.

Destructured JSON output reuses the regular log highlighting pipeline and also adds a dedicated color-scheme entry for extra property names:

• Logs -> Destructured JSON -> Extra Property Name

Console-specific behavior such as raw JSON actions and performance-related line-length limits is documented on the Console Output page.

File Size Thresholds

To ensure responsive performance, JetBrains IDE has a file size threshold for in-memory content loading.

When a log file exceeds this threshold (default 20 MB), it is opened as a Large File with pagination and large-file view optimization. The file is read-only in this mode. Text search may be slower while disk I/O is performed. On the other hand, file scrolling and overall UX may be more responsive.

Note: Problem inspections are not supported for log files opened as Large Files. See Navigation - Problem Inspections for details.