First commit. Version 0.1.0

themes/default/icons/catalogue/LICENSE.md

@@ -0,0 +1,70 @@
+# Catalogue icon licence
+
+The symbolic glyphs under this directory tree
+(`themes/default/icons/catalogue/{filled,line}/<category>/`) are sourced
+from **Streamline — Core Line Free** and distributed under the
+**Creative Commons Attribution 4.0 International** licence (CC BY 4.0).
+
+- **Author:** Streamline
+- **Source:** <https://www.streamlinehq.com/icons/core-line-free>
+- **Licence:** <https://creativecommons.org/licenses/by/4.0/>
+
+## Required attribution
+
+When redistributing this directory (or any binary that embeds the SVG
+files within), credit must be given to Streamline and a link to the
+licence must be reachable to the user. The exact wording is flexible
+— any of the following satisfies the obligation:
+
+> Icons by [Streamline](https://www.streamlinehq.com/icons/core-line-free), CC BY 4.0.
+
+> Symbolic icons: © Streamline, distributed under CC BY 4.0
+> (https://creativecommons.org/licenses/by/4.0/).
+
+The full Debian-style attribution lives in the top-level
+[`debian/copyright`](../../../../debian/copyright) of the `ltk` source
+tree under the `Files: themes/default/icons/catalogue/*` paragraph.
+
+## Modifications
+
+**Some of the SVG files in this directory have been modified from
+their upstream Streamline form**, but the set of modifications is
+**not tracked per icon**. Common edits that get applied across icon
+imports of this kind include any of: `viewBox` normalisation, removal
+or normalisation of inline `fill` / `stroke` attributes (so the
+runtime `theme::tint_symbolic` pass controls the final colour),
+ID / class renames, path simplification at small chrome sizes — but
+which of these landed on which file is not recorded.
+
+Treat **any** file in this directory as potentially differing from
+the upstream Streamline distribution. Anyone needing a pristine copy
+of the original glyphs should fetch them from
+<https://www.streamlinehq.com/icons/core-line-free> rather than rely
+on this directory's contents being byte-identical to the upstream
+release.
+
+This declaration satisfies CC BY 4.0 §3(a)(1)(B) by indicating that
+modifications were made, even though it does not enumerate them
+per file. The CC BY 4.0 specification requires the modifications to
+be *indicated*, not *itemised*; a directory-wide declaration is the
+recognised pattern for asset imports where the diff against upstream
+was not tracked at integration time.
+
+In addition, ltk performs run-time symbolic tinting through
+`theme::tint_symbolic` on the rasterised RGBA pixel data; this is a
+transformation of the rendered output and is **not** a modification
+of the SVG files on disk. The on-disk modifications above are what
+§3(a)(1)(B) requires us to declare; the runtime tint is independent.
+
+## How licensing applies to the rest of the theme
+
+Files under `themes/default/branding/` (wallpapers, lockscreens,
+launcher logos, brand wordmark variants), `themes/default/icons/apps/`
+(per-application icons) and `themes/default/icons/app-default.svg`
+(the unknown-app fallback) are **original artwork by Liberux Labs**
+distributed under the same `LGPL-2.1-only` terms as the rest of the
+toolkit. They are *not* covered by the CC BY 4.0 declaration above.
+
+Themes that fork the default tree should preserve the split: re-license
+your own artwork freely, but the contents of this `catalogue/` directory
+remain CC BY 4.0 with attribution to Streamline.