A reproduction demonstrating the incorrect BarBackgroundColor when using On<iOS>().SetPrefersLargeTitles(true)
=== Visual Studio Enterprise 2019 for Mac ===
Version 8.3 (build 1805) Installation UUID: 3a44bb7e-f162-4472-825a-c8f8d1d6fd30 GTK+ 2.24.23 (Raleigh theme) Xamarin.Mac 5.16.1.24 (d16-3 / 08809f5b)
Package version: 604000198
=== Mono Framework MDK ===
Runtime: Mono 6.4.0.198 (2019-06/fe64a4765e6) (64-bit) Package version: 604000198
=== Xamarin Designer ===
Version: 16.3.0.230 Hash: bbe518670 Branch: remotes/origin/d16-3-xcode11 Build date: 2019-09-17 18:39:30 UTC
=== NuGet ===
Version: 5.3.0.6192
=== .NET Core SDK ===
SDK: /usr/local/share/dotnet/sdk/3.0.100/Sdks SDK Versions: 3.0.100 3.0.100-rc1-014190 3.0.100-preview9-014004 3.0.100-preview8-013656 3.0.100-preview7-012821 3.0.100-preview6-012264 2.2.402 2.1.701 2.1.700 1.1.14 MSBuild SDKs: /Library/Frameworks/Mono.framework/Versions/6.4.0/lib/mono/msbuild/Current/bin/Sdks
=== .NET Core Runtime ===
Runtime: /usr/local/share/dotnet/dotnet Runtime Versions: 3.0.0 3.0.0-rc1-19456-20 3.0.0-preview9-19423-09 3.0.0-preview7-27912-14 3.0.0-preview6-27804-01 2.2.7 2.1.13 2.1.12 2.1.11 1.1.13 1.0.16
=== Xamarin.Profiler ===
Version: 1.6.11.16 Location: /Applications/Xamarin Profiler.app/Contents/MacOS/Xamarin Profiler
=== Updater ===
Version: 11
=== Apple Developer Tools ===
Xcode 11.0 (14936) Build 11A420a
=== Xamarin.Mac ===
Xamarin.Mac not installed. Can't find /Library/Frameworks/Xamarin.Mac.framework/Versions/Current/Version.
=== Xamarin.iOS ===
Version: 13.2.0.42 (Visual Studio Enterprise) Hash: 5e8a208b Branch: d16-3 Build date: 2019-09-17 14:19:30-0400
=== Xamarin.Android ===
Version: 10.0.0.43 (Visual Studio Enterprise) Commit: xamarin-android/d16-3/8af1ca8 Android SDK: /Users/bramin/Library/Developer/Xamarin/android-sdk-macosx Supported Android versions: None installed
SDK Tools Version: 26.1.1 SDK Platform Tools Version: 29.0.3 SDK Build Tools Version: 28.0.3
Build Information: Mono: mono/mono/2019-06@7af64d1ebe9 Java.Interop: xamarin/java.interop/d16-3@5836f58 LibZipSharp: grendello/LibZipSharp/d16-3@71f4a94 LibZip: nih-at/libzip/rel-1-5-1@b95cf3f ProGuard: xamarin/proguard/master@905836d SQLite: xamarin/sqlite/3.27.1@8212a2d Xamarin.Android Tools: xamarin/xamarin-android-tools/d16-3@cb41333
=== Microsoft Mobile OpenJDK ===
Java SDK: /Users/bramin/Library/Developer/Xamarin/jdk/microsoft_dist_openjdk_1.8.0.25 1.8.0-25 Android Designer EPL code available here: https://github.com/xamarin/AndroidDesigner.EPL
=== Android SDK Manager ===
Version: 1.4.0.65 Hash: c33b107 Branch: remotes/origin/d16-3 Build date: 2019-09-19 20:42:44 UTC
=== Android Device Manager ===
Version: 1.2.0.115 Hash: 724ea69 Branch: remotes/origin/d16-3 Build date: 2019-09-19 20:43:06 UTC
=== Xamarin Inspector ===
Version: 1.4.3 Hash: db27525 Branch: 1.4-release Build date: Mon, 09 Jul 2018 21:20:18 GMT Client compatibility: 1
=== Build Information ===
Release ID: 803001805 Git revision: df50511ccb08d4d84a53939f1d7fc0b40cbb0ee1 Build date: 2019-09-20 16:10:55+00 Build branch: release-8.3 Xamarin extensions: da8d448cd65f2cc87c5e6dc7e2c2ca7b96d20c72
=== Operating System ===
Mac OS X 10.14.6 Darwin 18.7.0 Darwin Kernel Version 18.7.0 Tue Aug 20 16:57:14 PDT 2019 root:xnu-4903.271.2~2/RELEASE_X86_64 x86_64