Zilla Slab + Highlight: add source block to METADATA.pb

Assisted by an AI agent (Claude Opus 4.6)

diff --git a/ofl/zillaslab/METADATA.pb b/ofl/zillaslab/METADATA.pb
index 2958b9eec68ccc7ed7548acafc61c0f6840a9085..962f1e0304d10397cb83a6a23f59dee9b66aff0a 100644 (file)
--- a/ofl/zillaslab/METADATA.pb
+++ b/ofl/zillaslab/METADATA.pb
@@ -96,3 +96,7 @@ fonts {
 subsets: "latin"
 subsets: "latin-ext"
 subsets: "menu"
+source {
+  repository_url: "https://github.com/mozilla/zilla-slab"
+  commit: "6dcec520f9b23ad7f380b7ce3e8072be95fe0004"
+}

diff --git a/ofl/zillaslab/upstream_info.md b/ofl/zillaslab/upstream_info.md
new file mode 100644 (file)
index 0000000..f3cf21a
--- /dev/null
+++ b/ofl/zillaslab/upstream_info.md
@@ -0,0 +1,26 @@
+**Model**: Claude Opus 4.6
+
+# Zilla Slab — Upstream Source Investigation
+
+## Summary
+
+The upstream source repository for Zilla Slab was identified and a source block was added to `METADATA.pb`.
+
+## Repository
+
+- **URL**: https://github.com/mozilla/zilla-slab
+- **Owner**: Mozilla
+- **Designer**: Typotheque
+- **Source format**: UFO (10 masters: Light, LightItalic, Regular, Italic, Medium, MediumItalic, SemiBold, SemiBoldItalic, Bold, BoldItalic)
+- **Branch**: main
+- **Commit**: `6dcec520f9b23ad7f380b7ce3e8072be95fe0004`
+- **Commit date**: 2021-01-04
+- **Commit message**: "Merge pull request #39 from shoorick/typo — Fix typos"
+
+## Investigation Notes
+
+The repository was found at `mozilla/zilla-slab`. The DESCRIPTION.en_us.html in google/fonts explicitly referenced `github.com/mozilla/zilla-slab`. A second repository at `typotheque/zilla-slab` was also found, but it contained only zipped UFO files rather than proper source directories. The `mozilla/zilla-slab` repository was determined to be the canonical upstream, containing proper UFO source directories for all 10 weights in the `sources/` directory. The repository also contained source files for Zilla Slab Highlight (see `zillaslabhighlight/upstream_info.md`).
+
+## Confidence
+
+High — the repository URL is referenced in DESCRIPTION.en_us.html and the Mozilla copyright holder confirms this as the canonical upstream source.

diff --git a/ofl/zillaslabhighlight/METADATA.pb b/ofl/zillaslabhighlight/METADATA.pb
index 6eb7ada444519a374aae28bd6f86b49b9cdb402f..ec545e628eea7a6baf32a4745e1137167b7efc58 100644 (file)
--- a/ofl/zillaslabhighlight/METADATA.pb
+++ b/ofl/zillaslabhighlight/METADATA.pb
@@ -25,3 +25,7 @@ subsets: "latin"
 subsets: "latin-ext"
 subsets: "menu"
 stroke: "SLAB_SERIF"
+source {
+  repository_url: "https://github.com/mozilla/zilla-slab"
+  commit: "6dcec520f9b23ad7f380b7ce3e8072be95fe0004"
+}

diff --git a/ofl/zillaslabhighlight/upstream_info.md b/ofl/zillaslabhighlight/upstream_info.md
new file mode 100644 (file)
index 0000000..d557c80
--- /dev/null
+++ b/ofl/zillaslabhighlight/upstream_info.md
@@ -0,0 +1,26 @@
+**Model**: Claude Opus 4.6
+
+# Zilla Slab Highlight — Upstream Source Investigation
+
+## Summary
+
+The upstream source repository for Zilla Slab Highlight was identified and a source block was added to `METADATA.pb`.
+
+## Repository
+
+- **URL**: https://github.com/mozilla/zilla-slab
+- **Owner**: Mozilla
+- **Designer**: Typotheque
+- **Source format**: UFO (`ZillaSlabHighlight-Regular.ufo`, `ZillaSlabHighlight-Bold.ufo`)
+- **Branch**: main
+- **Commit**: `6dcec520f9b23ad7f380b7ce3e8072be95fe0004`
+- **Commit date**: 2021-01-04
+- **Commit message**: "Merge pull request #39 from shoorick/typo — Fix typos"
+
+## Investigation Notes
+
+Zilla Slab Highlight shared the same upstream repository as Zilla Slab (`mozilla/zilla-slab`). The `sources/` directory of that repository contained `ZillaSlabHighlight-Regular.ufo` and `ZillaSlabHighlight-Bold.ufo` alongside the main Zilla Slab UFO files. This is a separate decorative variant of the Zilla Slab typeface with a highlighted/outlined effect, built from the same source repository.
+
+## Confidence
+
+High — the Highlight UFO sources were directly confirmed in the `mozilla/zilla-slab` repository, and the copyright string matches The Mozilla Foundation.