install

Additional install commands

macOS

Homebrewverified · 100%

brew install termbg

local Homebrew formula metadata

Linux

Fedora dnfverified · 92%

sudo dnf install termbg

Fedora Rawhide package metadata · termbg · source: dl.fedoraproject.org

Nixverified · 92%

nix profile install nixpkgs#termbg

nixpkgs package indexes · pkgs/by-name/te/termbg/package.nix · source: api.github.com

overview

Package summary

Rust library for terminal background color detection

Project links

Commands and aliases

termbg

history

Project history and usage

termbg is a Rust library and small check program for detecting a terminal's background color. The README says it reports either RGB values or a dark/light theme.

Project history

The GitHub repository was created in November 2020, and its v0.1.0 tag points to the initial repository work from the same day. The project has remained a focused terminal-behavior utility rather than a broad terminal UI framework.

Adoption history

termbg is published as a Rust crate and appears in package-manager metadata for Homebrew, dnf, and Nix. Its README badges link crates.io and docs.rs, and its Homebrew formula exposes the included `termbg` executable for checking terminal behavior from the command line.

How it is used

Rust programs depend on the crate and call functions such as `terminal`, `rgb`, and `theme` with a timeout. The README also documents an example check program that prints the terminal type, detected RGB value, and dark/light theme.

Why package nerds care

termbg is useful in the terminal-tooling niche because theme-aware CLIs often need to know whether the background is dark or light. Its README documents support and non-support across many terminals, which gives package maintainers and CLI authors a compact compatibility reference.

Timeline

2020-11-09: GitHub repository created and v0.1.0 tag commit dated.
2024-11-15: v0.6.1 tag commit dated.
2025-01-06: v0.6.2 tag commit dated.

Related projects

The README's compatibility list includes Alacritty, GNOME Terminal, GNU Screen, kitty, iTerm2, macOS Terminal, mintty, tmux, Visual Studio Code, xterm, Win32 console, and several unsupported terminals such as Cmder, ConEmu, PuTTY, QTerminal, and Windows Terminal.

Sources

security posture

Risk level: green

library-like package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

library-like package without higher-risk signals

Signals

metadata:library-like

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 8 platform targets.
Build metadata lists 1 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure	Note
`termbg`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-08-04

manager version0.6.2

manager updated

local dataok

upstreamcurrent

latest detectedv0.6.2

https://github.com/dalance/termbg

infoNo package-manager update timestamp was available.low confidence

install metadata

Package metadata

Package key	brew:termbg
Version	0.6.2
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/termbg
Homepage	https://github.com/dalance/termbg
Repository	https://github.com/dalance/termbg
License	Apache-2.0 OR MIT
Source archive	https://github.com/dalance/termbg/archive/refs/tags/v0.6.2.tar.gz
Build dependencies	rust
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, sonoma, ventura, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	termbg
Version Scheme	0
Revision	0
Head Version	HEAD
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	head stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

termbg

nix profile install nixpkgs#termbg

normalized package name match
Matched by: Termbg

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/te/termbg/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

dnf95%

termbg 0.6.2-5.fc45

Terminal background color detection

https://crates.io/crates/termbg

sudo dnf install termbg

License: Apache-2.0 AND MIT AND Unicode-DFS-2016 AND (Apache-2.0 OR MIT) AND (Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MIT) AND (Unlicense OR MIT)
Category: Unspecified
Architecture: x86_64
Source Package: rust-termbg
4 dependencies
1 provides
normalized package name match
Matched by: Termbg

Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: termbg from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/210a2053c8e007daf9ae39c2a21daaed9b2ddd07d63ecffa597050361e73650c-primary.xml.zst

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/termbg.yml

Used sources

Geiger risk classifier
cross-ecosystem install command graph
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment
pkg.so package database
pkgdb category and tag curation

Install termbg with Homebrew, dnf, Nix