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The 2026 way to set an accent color in Flutter with Material 3: ColorScheme.fromSeed, the colorSchemeSeed shorthand, the seven DynamicSchemeVariant options, dark mode, dynamic_color on Android 12+, and harmonizing brand colors. Tested on Flutter 3.27.1 and Dart 3.11.

Claude Code v2.1.128 (May 4, 2026) ships --plugin-dir support for .zip archives, makes EnterWorktree branch from local HEAD, and stops the CLI from leaking its own OTLP endpoint into Bash subprocesses.

If GetConnectionString returns null in .NET 11, your appsettings.json is missing the key, not copied to the build output, or the wrong environment file is being selected. Three checks fix 95% of cases.

Call native Android (Kotlin) and iOS (Swift) code from a Flutter 3.x app without writing a plugin: MethodChannel, EventChannel, BasicMessageChannel, the StandardMessageCodec type table, threading rules, and the cases where a plugin still wins.

Wire an EF Core 10 DbContext into a Model Context Protocol server so Claude Code, Cursor, or any compliant client can run safe, scoped queries against your database. Covers IDbContextFactory lifetime, read-only projections, schema discovery tools, AsNoTracking, parameterised filters, row-level scoping, and the destructive-tool gates you need before letting an agent touch UPDATE.

When async/await is not enough: spawn a Dart isolate to run CPU-bound work off the UI thread. Isolate.run, Flutter's compute, long-lived workers with SendPort/ReceivePort, what can cross the boundary, and the JS/web caveat. Tested on Dart 3.11 and Flutter 3.27.1.

Cursor's new @cursor/sdk public beta exposes the same runtime, harness, and models that drive the desktop app, CLI, and web UI as a TypeScript package. You get sandboxed cloud VMs, subagents, hooks, MCP, and token-based pricing in a few lines of code.

Three ways to wrap a T[] in a ReadOnlyMemory<T> in .NET 11: the implicit conversion, the explicit constructor, and AsMemory(). When each is the right call.

End-to-end guide to packaging a .NET MAUI 11 Windows app as an MSIX, bundling x64/x86/ARM64 into a .msixupload, and submitting through Partner Center: identity reservation, Package.appxmanifest, dotnet publish flags, MakeAppx bundling, and the Store-trusted certificate handoff.

Practical guide to running one Flutter project against multiple SDK versions in CI: a GitHub Actions matrix with subosito/flutter-action v2, FVM 3 .fvmrc as the source of truth, channel pinning, caching, and the gotchas that bite when the matrix grows past three versions.