This is a Kotlin Multiplatform line-by-line transliteration port of zkat/supports-color.

Original Project: This port is based on zkat/supports-color. All design credit and project intent belong to the upstream authors; this repository is a faithful port to Kotlin Multiplatform with no behavioural changes intended.

This is an in-progress port. The goal is feature parity with the upstream Rust crate while providing a native Kotlin Multiplatform API. Every Kotlin file carries a // port-lint: source <path> header naming its upstream Rust counterpart so the AST-distance tool can track provenance.

The text below is reproduced and lightly edited from https://github.com/zkat/supports-color. It is the upstream project's own description and remains under the upstream authors' authorship; links have been rewritten to absolute upstream URLs so they continue to resolve from this repository.

Detects whether a terminal supports color, and gives details about that support. It takes into account the NO_COLOR environment variable.

This crate is a Rust port of @sindresorhus' NPM package by the same name.

use supports_color::Stream;

if let Some(support) = supports_color::on(Stream::Stdout) {
    if support.has_16m {
        println!("16 million (RGB) colors are supported");
    } else if support.has_256 {
        println!("256 colors are supported.");
    } else if support.has_basic {
        println!("Only basic ANSI colors are supported.");
    }
} else {
    println!("No color support.");
}

dependencies {
    implementation("io.github.kotlinmania:supports-color-kotlin:0.1.1")
}

./gradlew build
./gradlew test

• macOS arm64
• Linux x64
• Windows mingw-x64
• iOS arm64 / simulator-arm64 (Swift export + XCFramework)
• JS (browser + Node.js)
• Wasm-JS (browser + Node.js)
• Android (API 24+)

See AGENTS.md and CLAUDE.md for translator discipline, port-lint header convention, and Rust → Kotlin idiom mapping.

This Kotlin port is distributed under the same Apache-2.0 license as the upstream zkat/supports-color. See LICENSE (and any sibling LICENSE-* / NOTICE files mirrored from upstream) for the full text.

Original work copyrighted by the supports-color authors.
Kotlin port: Copyright (c) 2026 Sydney Renee and The Solace Project.

Thanks to the zkat/supports-color maintainers and contributors for the original Rust implementation. This port reproduces their work in Kotlin Multiplatform; bug reports about upstream design or behavior should go to the upstream repository.