The Garage SDKs, in the open

garage_auth, garage_entitlements, garage_iap and garage_ui, moved out of
Garage-Services and Metro-Map-Maker into one public repo. MIT, one readme,
docs under docs/.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013F4NWNvYcdeSgqbWMT1VQ7

garage_ui/lib/theme/garage_theme.dart

@@ -0,0 +1,90 @@
+import "package:flutter/widgets.dart";
+import "package:google_fonts/google_fonts.dart";
+
+import "package:garage_ui/theme/theme_data.dart";
+
+export "package:garage_ui/theme/theme_data.dart";
+export "package:garage_ui/theme/colour_scheme.dart";
+export "package:garage_ui/theme/typography.dart";
+
+// The apps theme. Hands the theme data down via a plain inherited scope (no
+// animated wrapper, no per frame ColorScheme.lerp flattening the whole thing -
+// this is the bit that used to feel second class), AND establishes a sane
+// DefaultTextStyle + IconTheme so bare Text/Icon dont fall back to flutter's
+// yellow-underline "unstyled" debug look (MaterialApp only styles text inside a
+// Material, and our panels arent Material).
+class GarageTheme extends StatelessWidget {
+  const GarageTheme({super.key, required this.data, required this.child});
+
+  final ThemeData data;
+  final Widget child;
+
+  static ThemeData of(BuildContext context) {
+    final t = maybeOf(context);
+    assert(
+      t != null,
+      "No GarageTheme found in context. Wrap the app in an GarageTheme.",
+    );
+    return t!;
+  }
+
+  static ThemeData? maybeOf(BuildContext context) {
+    return context
+        .dependOnInheritedWidgetOfExactType<_GarageThemeScope>()
+        ?.data;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final cs = data.colorScheme;
+    return _GarageThemeScope(
+      data: data,
+      child: DefaultTextStyle(
+        // the one app-wide UI font, declared right here at the top of the tree.
+        // everything below that doesnt override fontFamily inherits Geist.
+        // (canvas-painted text - station labels, watermark - sits outside the
+        // widget tree so it isnt touched by this.)
+        style: GoogleFonts.geist(
+          color: cs.foreground,
+          // off the density, not a literal times scaling. this was the third
+          // independent source of text size in the package - controls read
+          // density.fontSize, the .xSmall()/.small()/.large() ladder now reads
+          // it too, and this floated free at 11 * scaling. Retune fontSize and
+          // page copy no longer stays behind while the controls move.
+          //
+          // fontSize, NOT textXs. The ladder above the control font is a set
+          // of MULTIPLIERS (xs 1.1x, sm 1.4x, lg 1.8x), so what textXs means
+          // depends on the tier: at A&A's 10 its 11, a hair over the control
+          // font and harmless, and at the product tier's 16 its 18 - body copy
+          // rendering BIGGER than the text inside the buttons and fields next
+          // to it. Thats backwards, and its what made the product surfaces
+          // read as oversized even with their control geometry correct.
+          //
+          // Body copy is the control font. A sentence and the text in the box
+          // under it are the same size, at every tier, by construction.
+          fontSize: data.density.fontSize,
+          // the important bit - kills the yellow underline.
+          decoration: TextDecoration.none,
+          fontWeight: FontWeight.w300,
+        ),
+        child: IconTheme(
+          data: IconThemeData(
+            color: cs.foreground,
+            size: data.iconTheme.medium.size,
+          ),
+          child: child,
+        ),
+      ),
+    );
+  }
+}
+
+class _GarageThemeScope extends InheritedWidget {
+  const _GarageThemeScope({required this.data, required super.child});
+
+  final ThemeData data;
+
+  @override
+  bool updateShouldNotify(_GarageThemeScope oldWidget) =>
+      oldWidget.data != data;
+}