Logger Color Themes

ZinTrust request logs can use one of five terminal color palettes. The default theme is arctic, and all themes are selected with LOG_COLOR_THEME when text logging is enabled.

Fresh ZinTrust project scaffolds now enable request-path logging and ANSI colors by default with LOG_HTTP_REQUEST=true, LOG_COLOR=true, and LOG_COLOR_THEME=arctic.

Enable Theme Selection

LOG_FORMAT=text
LOG_COLOR=true
LOG_COLOR_THEME=arctic

• LOG_COLOR_THEME accepts arctic, sharp-ops, soft-contrast, neon-grid, and production-safe.
• Invalid values fall back to arctic.
• LOG_COLOR still controls whether ANSI color codes are emitted at all. The runtime fallback is true, and you can still use auto or false/never when needed.
• JSON logs and file logs stay uncolored.

Shared Request Example

All five themes color the same request log structure:

[INFO] [GET] /queue-monitor/api/events 200 OK (222ms) [requestId=32af0e13-8512-473b-a695-95b29238865d]
[INFO] [POST] /api/jobs 201 Created (18ms) [requestId=1a8e0d02-cb43-4e2a-bf1a-fef749247fdb]
[INFO] [PUT] /api/profile 401 Unauthorized (84ms) [requestId=7c044194-7f3b-4469-a021-f0f8f7130e2c]
[INFO] [DELETE] /api/users/42 404 Not Found (356ms) [requestId=b1e4e42f-bb0f-41ad-9df5-0be62be36fd0]
[INFO] [OPTIONS] /broadcasting/auth 419 Page Expired (9ms) [requestId=dd45f96d-45db-4726-a99b-fd3fd10c35e2]
[INFO] [POST] /api/payments/capture 500 Internal Server Error (1042ms) [requestId=40b7fe2c-825a-4a15-89c6-f2a5cd36075b]

Theme Reference

Arctic Terminal

LOG_COLOR_THEME=arctic

Default palette for ZinTrust. It uses colder cyan and blue separation, stronger green success markers, a softer ice-blue path, and a visible but still secondary request id so long-running backend sessions stay readable.

Segment	Color intent
[INFO]	bright cyan
GET	bright blue
POST	bright green
PUT	bright yellow
DELETE	bright red
OPTIONS / 419	bright magenta
200 / 201	bright green
401 / 404	yellow
500	bright red
(18ms ... 1042ms)	cyan to blue to yellow to red
[requestId=...]	dim cyan

Sharp Ops

LOG_COLOR_THEME=sharp-ops

Higher-contrast operations palette. Warnings and failures separate more aggressively from normal traffic.

Segment	Color intent
[INFO]	cyan
GET	bright blue
POST	green
PUT	yellow
DELETE	red
OPTIONS / 419	bright magenta
200 / 201	green
401 / 404	yellow
500	red
(18ms ... 1042ms)	green to yellow to red
[requestId=...]	dim gray

Soft Contrast

LOG_COLOR_THEME=soft-contrast

Lower-intensity colors for long watches, with a brighter path segment so the route stays prominent without neon-level saturation.

Segment	Color intent
[INFO]	bold white
GET	blue
POST	cyan
PUT	yellow
DELETE	bright red
OPTIONS / 419	bright magenta
200 / 201	cyan
401 / 404	yellow
500	red
(18ms ... 1042ms)	cyan to blue to yellow to red
[requestId=...]	dim white

Neon Grid

LOG_COLOR_THEME=neon-grid

Most expressive option. This palette is tuned for dense debug sessions where method, status, and latency need to pop immediately.

Segment	Color intent
[INFO]	cyan
GET	bright cyan
POST	bright green
PUT	bright yellow
DELETE	bright red
OPTIONS / 419	bright magenta
200 / 201	bright green
401 / 404	bright yellow
500	bright red
(18ms ... 1042ms)	bright cyan to green to yellow to red
[requestId=...]	dim gray

Production Safe

LOG_COLOR_THEME=production-safe

Conservative palette that tracks standard operations color expectations closely while keeping request logs segmented.

Segment	Color intent
[INFO]	blue
GET	blue
POST	green
PUT	yellow
DELETE	red
OPTIONS / 419	bright magenta
200 / 201	green
401 / 404	yellow
500	red
(18ms ... 1042ms)	green to yellow to red
[requestId=...]	dim gray

Visual Palette Sheet

For a side-by-side visual preview outside the docs site, use the palette sheet in dev/request-log-color-samples.html.