SolidCraft Brand and Interface Licence

Copyright (c) 2026 the SolidCraft maintainers.

SolidCraft's code that models, imports, exports and computes geometry is open source under the MIT
License or the Apache License 2.0 (LICENSE-MIT, LICENSE-APACHE). This licence covers something
different: how SolidCraft looks and feels. That is its brand. A CAD program can be built from
SolidCraft's open code; it should not look like SolidCraft unless the maintainers have agreed.

1. What this licence covers ("the Brand Material")

   a. The UI kit, `crates/ui-kit` (solidcraft-ui-kit): the code and the design of SolidCraft's
      controls, panels, menus, ribbon, app bar, history bar, navigation bar, view compass,
      Preferences window, start page and window chrome.
   b. The look, `crates/look` (solidcraft-look): the interface icon masters and their artwork,
      the code-drawn glyphs, and the built-in themes.
   c. The theme, `crates/theme` (solidcraft-theme): the design tokens, colour palettes, accent
      ramps, sizes and spacing that give SolidCraft its appearance.
   d. The SolidCraft name, logo, app icon and brand kit (`assets/branding`, `assets/icons/app`).

   Third-party material inside these folders keeps its own licence, listed in ATTRIBUTION.md.
   In particular the IBM Plex fonts are under the SIL Open Font License 1.1, and nothing here
   limits what that licence allows.

2. What you may do without asking

   a. Read, build, run and modify the Brand Material as part of SolidCraft itself, including
      your own builds and forks of SolidCraft used for development, testing, learning or
      contributing back.
   b. Contribute changes to the Brand Material through the SolidCraft repository.
   c. Show SolidCraft, with its look, in reviews, tutorials, articles, videos and teaching.

3. What needs the maintainers' written permission first

   a. Using any Brand Material in another program, product, service or library, including
      linking to the UI kit, the look or the theme from software that is not SolidCraft.
   b. Distributing the Brand Material, or a modified version of it, other than as part of
      SolidCraft.
   c. Distributing a fork or modified build of SolidCraft to others under the SolidCraft name,
      logo or app icon, or with a look that could be taken for SolidCraft's.
   d. Using the SolidCraft name, logo or app icon to name, promote or endorse anything else.

   To ask, open an issue at https://github.com/tangency-labs/solidcraft or contact the
   maintainers there. Permission is given in writing and may come with conditions.

4. Contributions

   By contributing to the Brand Material you agree that the maintainers may license your
   contribution under this licence, and under the MIT License or the Apache License 2.0, at
   their choice.

5. Earlier versions

   Versions of SolidCraft published before this licence took effect stay under the licences
   they were published with.

6. No warranty

   The Brand Material is provided "as is", without warranty of any kind, express or implied,
   including the warranties of merchantability, fitness for a particular purpose and
   non-infringement. In no event shall the maintainers or contributors be liable for any
   claim, damages or other liability arising from the Brand Material or its use.