diffr is derived from third-party work, each retained under its own license.
difftastic
https://github.com/Wilfred/difftastic
Copyright (c) 2021-2025 Wilfred Hughes. MIT License (see LICENSE).
diffr forked difftastic at commit 274d0a8f5 (2026-09-08).
hunk (terminal frontend under tui/)
https://github.com/modem-dev/hunk
Copyright (c) Modem Labs Inc. MIT License (see tui/LICENSE).
Import details in TUI_UPSTREAM.md.
Helix editor themes (tui/themes/)
https://github.com/helix-editor/helix/tree/master/runtime/themes
Mozilla Public License 2.0 (see tui/themes/LICENSE).
GitHub Linguist language data (plugins/classify/rust/src/linguist/)
https://github.com/github-linguist/linguist
MIT License (see plugins/classify/rust/src/linguist/LICENSE).
tree-sitter grammars (vendored_parsers/)
Each grammar directory carries its upstream license file. Grammars
without a license file in their source tree are listed here:
- tree-sitter-janet-simple: https://github.com/sogaiu/tree-sitter-janet-simple
CC0 1.0 Universal (see vendored_parsers/tree-sitter-janet-simple/LICENSE).