# sharpbracket/redshift

Redshift adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night.

Repository: https://github.com/sharpbracket/redshift
Canonical: https://ross.abutalabs.com/products/redshift
Language: C
License: GPL-3.0
License Family: copyleft
Topics: color-temperature, redshift, gamma-ramps, night-mode, night, eye-strain
Archived: true
Last push: 2024-06-05T23:13:22+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 5004, "days_push": 819, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6148, forks 429 (observed 2026-08-28T04:09:36.583893+00:00)

## What it is
Redshift is a C application that adjusts your screen's color temperature based on time of day to reduce eye strain at night. It works via gamma ramps and includes an optional GTK tray icon (redshift-gtk).

## Use cases
- reduce eye strain when working at night
- make screen warmer in the evening
- night mode for linux desktop
- schedule screen color temperature changes
- alternative to f.lux on linux
- automatically dim screen color at sunset

## When to choose
- your desktop environment lacks a built-in night light feature
- you need more scheduling or color temperature flexibility than built-in tools offer
- you use a window manager or older desktop without integrated night mode

## When to avoid
- you use GNOME, KDE, Windows 10+, or macOS which have integrated Night Light/Night Shift features
- you need color transformation beyond what gamma ramps can achieve

## Facets
- artifact type: application
- maturity: maintenance
- function: gui, cli, configuration-management
- domain: desktop-applications, developer-tools, accessibility
- platform: windows, cross-platform, cli
- tags: color-temperature, night-mode, eye-strain, gamma-ramps, f.lux-alternative, linux, macos

## Member repositories
- sharpbracket/redshift (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:36.583893+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:47:32.414914+00:00, confidence not recorded.
  - readme: https://github.com/sharpbracket/redshift (fetched 2026-08-28T04:09:36.583893+00:00, sha 54244cb1290a)
- Data as of 2026-08-30T08:39:29.467469+00:00.