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/platform/eyedropper.dart

@@ -0,0 +1,23 @@
+import "package:flutter/widgets.dart";
+
+import "eyedropper_native.dart"
+    if (dart.library.html) "eyedropper_web.dart"
+    as impl;
+
+// Screen-wide colour sampling, where the platform can actually do it.
+//
+// macOS gets NSColorSampler (see macos/Runner/ScreenColorSampler.swift) and
+// Chromium browsers get the EyeDropper web api. Both of those draw their own
+// magnifier loupe over the whole desktop and hand back a single colour when
+// the user clicks, so theres no live preview to stream on the way - the
+// preview IS the loupe.
+//
+// Everywhere else [nativeEyedropperAvailable] just answers false and callers
+// fall back to sampling the apps own frame (see widgets/app_frame_capture.dart),
+// which is window-only but works on every platform.
+
+Future<bool> nativeEyedropperAvailable() => impl.nativeEyedropperAvailable();
+
+/// Opens the system sampler and resolves with the picked colour, or null if
+/// the user cancelled (escape) or something went wrong on the way.
+Future<Color?> pickNativeScreenColor() => impl.pickNativeScreenColor();