docs(xml): add missing licence files (#8984)

docs/src/details/xml/editor/license.rst

@@ -0,0 +1,10 @@
+.. include:: external_links.txt
+.. _editor_license:
+
+=======
+License
+=======
+
+
+LVGL Pro Editor comes with a simple, scalable and royalty-free licensing model that works
+for open-source projects, startups, and enterprises alike.  `See all plans`_.

docs/src/details/xml/xml/license.rst

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+.. _lvgl_xml_license:
+
+===========
+XML License
+===========
+
+**Version 1.0 – June 2025**
+
+**Copyright (c) 2025 LVGL LLC**
+
+
+1. Overview
+===========
+
+The LVGL XML Specification (the "Specification") defines an XML-based language for describing user interfaces within the LVGL ecosystem.
+
+This Specification is protected by copyright. It is provided with limited rights of use as outlined below.
+
+The purpose of this license is to ensure that the Specification remains freely usable for application developers working with LVGL,
+while restricting its use in third-party UI editors or design tools.
+This protects the long-term integrity and sustainability of the LVGL ecosystem by preventing unlicensed tools
+from reusing or replicating the Specification in ways that compete with official LVGL offerings.
+
+
+2. Permitted Usage
+==================
+
+You are permitted to:
+
+- Use this Specification in **any firmware or embedded application** built on top of the official `LVGL library <https://github.com/lvgl/lvgl>`_ (MIT-licensed).
+- Use the LVGL XML loader freely in accordance with its MIT license.
+- Use the Specification with the **LVGL UI editor** and **official LVGL tools such as the CLI or XML loader**.
+- Write, load, edit, or generate user interfaces described in the LVGL XML Specification for **internal use** only, including automation or configuration tools used solely inside your organization.
+- Create **internal scripts or plugins** that help your own developers use or manage this Specification, as long as these are **not shared outside your organization or made publicly available**.
+- Share XML-based UI files within customer firmware or projects that target LVGL-based embedded systems.
+
+
+3. Restrictions
+===============
+
+You are **not permitted** to:
+
+- Create, release, or distribute any **UI editor, visual builder, layout designer, code generator, or tool** that reads, writes, or interprets XML files using this Specification — **whether commercial, open-source, or intended for public use, use by customers or partners, or any use outside your own organization** — without written permission from LVGL LLC.
+- Implement or extend this Specification in any **software or platform that provides UI creation, editing, or design capabilities similar to those in the LVGL UI Editor**.
+- Build public APIs, plugins, converters, or SDKs based on this Specification.
+- Share or publish internal tooling built around this Specification.
+- Use this Specification into general-purpose design tools or frameworks outside the LVGL ecosystem.
+
+These restrictions apply regardless of whether the software is commercial, free, or open-source.
+
+4. Clarification for LVGL Users
+===============================
+
+You are **explicitly permitted** to:
+
+- Use XML files with this Specification in your own projects.
+- Load XMLs at runtime using LVGL’s XML loader.
+- Generate XMLs using the LVGL UI editor.
+- Customize XMLs manually or with internal utilities.
+- Share LVGL-based projects with XML files as part of a commercial product or firmware.
+
+If you are building embedded software using LVGL, **this license does not affect you**.
+This license only applies to **UI development tools** that **read, generate, or process XML files using this Specification for UI development purposes** in a public or commercial manner.
+
+You may create **internal tools** to aid development using the Specification, but these must not be published, sold, or shared externally without a license.
+
+
+5. Trademarks
+=============
+
+This license does not grant any rights to use the LVGL name, logo, or trademarks.
+
+
+6. Licensing and Permissions
+============================
+
+To request permission for broader use or commercial licensing (e.g. using this Specification in your own UI tool), contact:
+
+**lvgl@lvgl.io**
+
+All rights not expressly granted herein are reserved by LVGL LLC.
+