The bundled MAIDR web assets in inst/htmlwidgets/lib/maidr-*/ (maidr.js,
maidr-math.css, and the Highcharts and ECharts adapters highcharts.js and
echarts.js, which contain MAIDR code only) are the compiled distribution of
the MAIDR project (https://maidr.ai, GPL-3.0-or-later, the license of this
package) and embed the following third-party open-source components:

- React and React DOM (https://react.dev)
  Copyright (c) Meta Platforms, Inc. and affiliates. MIT License.

- KaTeX (https://katex.org)
  Copyright (c) Khan Academy and contributors. MIT License.
  (KaTeX provides math rendering in maidr.js, and its rules ship as
  maidr-math.css. The KaTeX_* web fonts normally embedded in that file are
  stripped from the copy shipped with this R package to reduce installed
  size; KaTeX math glyphs therefore fall back to system fonts. The stripping
  is done by .github/scripts/fetch-maidr-bundle.sh when the bundle is
  refreshed.)

- MUI (Material UI and MUI Icons, https://mui.com)
  Copyright (c) 2014 Call-Em-All. MIT License.

- Emotion (https://emotion.sh)
  Copyright (c) Emotion team and other contributors. MIT License.

- Popper (https://popper.js.org), used by Material UI
  Copyright (c) 2019 Federico Zivolo. MIT License.

- Redux Toolkit (https://redux-toolkit.js.org) and React Redux
  Copyright (c) 2018 Mark Erikson; Copyright (c) 2015-present Dan Abramov.
  MIT License.

- Immer (https://immerjs.github.io/immer), used by Redux Toolkit
  Copyright (c) 2017 Michel Weststrate. MIT License.

- react-markdown (https://github.com/remarkjs/react-markdown)
  Copyright (c) Espen Hovlandsdal. MIT License.

- remark-gfm, remark-math, rehype-katex, rehype-sanitize and the unified,
  remark, rehype and micromark libraries they build on
  (https://unifiedjs.com). Copyright (c) Titus Wormer. MIT License.

- hotkeys-js (https://github.com/jaywcjlove/hotkeys-js)
  Copyright (c) 2015 kenny wong. MIT License.

The list follows the dependencies of the bundled MAIDR release
(package.json in https://github.com/xability/maidr) and is checked against
the bundle when it is refreshed; refresh it here too when the upstream
dependencies change.

All bundled components are distributed under the MIT license, which is
compatible with this package's GPL (>= 3) license. The full upstream
license texts are available from each project's repository.