I was trying to understand the implementation of Panache. Since it is a pretty new tool, I am not quite sure if I am doing the implementation right, but I created a new theme on Panache Web and I changed the Primary swatch just to test if it would work with my project but when I download the Theme.dart class and implement it to my Flutter project's lib folder, I get an error for a specific part of the code.

This is the code piece from Theme.dart:

It gives an error for every Instance of 'minified:e'

This is the error I get:

Did I do something wrong while I was implementing the code in my project? or is it something else?

This app looks like its a great app to actually use to build themes in Flutter, super helpful. I don't have an android so I am going to download / compile / and get it setup for iOS, but it sure would be a great project to test the Mac / PC app capabilities of flutter so you could have a companion app for when you are working on the mac / pc.

Thanks for creating this very very useful tool!

I'm trying to find how to save the resulting ThemeData, but I keep getting

flutter: Signin error : PlatformException(missing-config, GoogleService-Info.plist file not found, null)

even though I have added the file to the project. An example of how to configure this would be helpful.

Because the linked website is unusable because of errors i wanted to run the project locally and got this compiler error when I tried:

flutter run -d chrome
Launching lib\main.dart on Chrome in debug mode...
Syncing files to device Chrome...

Compiler message:
../panache_ui/lib/src/screens/editor/controls/color_picker/color_slider.dart:1101:9: Error: The superclass,
'Diagnosticable', has no unnamed constructor that takes no arguments.
  const GradientSliderThemeData({
        ^^^^^^^^^^^^^^^^^^^^^^^
Unhandled exception:
NoSuchMethodError: The getter 'name' was called on null.
Receiver: null
Tried calling: name
#0      Object.noSuchMethod (dart:core-patch/object_patch.dart:53:5)
#1      ProgramCompiler._emitSuperConstructorCallIfNeeded (package:dev_compiler/src/kernel/compiler.dart:1465:14)
#2      ProgramCompiler._emitConstructorBody (package:dev_compiler/src/kernel/compiler.dart:1419:19)
#3      ProgramCompiler._emitConstructor.<anonymous closure>.<anonymous closure>
(package:dev_compiler/src/kernel/compiler.dart:1375:19)
#4      ProgramCompiler._superDisallowed (package:dev_compiler/src/kernel/compiler.dart:3125:24)
#5      ProgramCompiler._emitConstructor.<anonymous closure> (package:dev_compiler/src/kernel/compiler.dart:1374:15)
#6      ProgramCompiler._withLetScope (package:dev_compiler/src/kernel/compiler.dart:2116:25)
#7      ProgramCompiler._withCurrentFunction (package:dev_compiler/src/kernel/compiler.dart:3115:18)
#8      ProgramCompiler._emitConstructor (package:dev_compiler/src/kernel/compiler.dart:1372:16)
#9      ProgramCompiler._defineConstructors (package:dev_compiler/src/kernel/compiler.dart:972:38)
#10     ProgramCompiler._emitClassDeclaration (package:dev_compiler/src/kernel/compiler.dart:567:19)
#11     ProgramCompiler._emitClass (package:dev_compiler/src/kernel/compiler.dart:510:21)
#12     List.forEach (dart:core-patch/growable_array.dart:282:8)
#13     ProgramCompiler._emitLibrary (package:dev_compiler/src/kernel/compiler.dart:459:23)
#14     List.forEach (dart:core-patch/growable_array.dart:282:8)
#15     ProgramCompiler.emitModule (package:dev_compiler/src/kernel/compiler.dart:345:15)
#16     JavaScriptBundler.compile (package:frontend_server/src/javascript_bundle.dart:131:33)
<asynchronous suspension>
#17     FrontendCompiler.writeJavascriptBundle (package:frontend_server/frontend_server.dart:616:20)
<asynchronous suspension>
#18     FrontendCompiler.compile (package:frontend_server/frontend_server.dart:523:15)
<asynchronous suspension>
#19     _FlutterFrontendCompiler.compile (package:flutter_frontend_server/server.dart:40:22)
#20     listenAndCompile.<anonymous closure> (package:frontend_server/frontend_server.dart:1154:26)
#21     _RootZone.runUnaryGuarded (dart:async/zone.dart:1374:10)
#22     _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
#23     _BufferingStreamSubscription._add (dart:async/stream_impl.dart:266:7)
#24     _SinkTransformerStreamSubscription._add (dart:async/stream_transformers.dart:70:11)
#25     _EventSinkWrapper.add (dart:async/stream_transformers.dart:17:11)
#26     _StringAdapterSink.add (dart:convert/string_conversion.dart:238:11)
#27     _LineSplitterSink._addLines (dart:convert/line_splitter.dart:152:13)
#28     _LineSplitterSink.addSlice (dart:convert/line_splitter.dart:127:5)
#29     StringConversionSinkMixin.add (dart:convert/string_conversion.dart:165:5)
#30     _SinkTransformerStreamSubscription._handleData (dart:async/stream_transformers.dart:122:24)
#31     _RootZone.runUnaryGuarded (dart:async/zone.dart:1374:10)
#32     _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
#33     _BufferingStreamSubscription._add (dart:async/stream_impl.dart:266:7)
#34     _SinkTransformerStreamSubscription._add (dart:async/stream_transformers.dart:70:11)
#35     _EventSinkWrapper.add (dart:async/stream_transformers.dart:17:11)
#36     _StringAdapterSink.add (dart:convert/string_conversion.dart:238:11)
#37     _StringAdapterSink.addSlice (dart:convert/string_conversion.dart:243:7)
#38     _Utf8ConversionSink.addSlice (dart:convert/string_conversion.dart:314:20)
#39     _Utf8ConversionSink.add (dart:convert/string_conversion.dart:307:5)
#40     _ConverterStreamEventSink.add (dart:convert/chunked_conversion.dart:74:18)
#41     _SinkTransformerStreamSubscription._handleData (dart:async/stream_transformers.dart:122:24)
#42     _RootZone.runUnaryGuarded (dart:async/zone.dart:1374:10)
#43     _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
#44     _BufferingStreamSubscription._add (dart:async/stream_impl.dart:266:7)
#45     _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:779:19)
#46     _StreamController._add (dart:async/stream_controller.dart:655:7)
#47     _StreamController.add (dart:async/stream_controller.dart:597:5)
#48     _Socket._onData (dart:io-patch/socket_patch.dart:1982:41)
#49     _RootZone.runUnaryGuarded (dart:async/zone.dart:1374:10)
#50     _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
#51     _BufferingStreamSubscription._add (dart:async/stream_impl.dart:266:7)
#52     _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:779:19)
#53     _StreamController._add (dart:async/stream_controller.dart:655:7)
#54     _StreamController.add (dart:async/stream_controller.dart:597:5)
#55     new _RawSocket.<anonymous closure> (dart:io-patch/socket_patch.dart:1527:33)
#56     _NativeSocket.issueReadEvent.issue (dart:io-patch/socket_patch.dart:1019:14)
#57     _microtaskLoop (dart:async/schedule_microtask.dart:43:21)
#58     _startMicrotaskLoop (dart:async/schedule_microtask.dart:52:5)
#59     _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:118:13)
#60     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:169:5)
the Dart compiler exited unexpectedly.
Syncing files to device Chrome...                               13.161ms (!)
Failed to compile application.

Flutter Doctor:

[√] Flutter (Channel beta, v1.17.0, on Microsoft Windows [Version 10.0.17763.1098], locale de-DE)
    • Flutter version 1.17.0 at C:\src\flutter
    • Framework revision d3ed9ec945 (12 hours ago), 2020-04-06 14:07:34 -0700
    • Engine revision c9506cb8e9
    • Dart version 2.8.0 (build 2.8.0-dev.18.0 eea9717938)

[√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
    • Android SDK at C:\Users\Torben\AppData\Local\Android\sdk
    • Platform android-28, build-tools 28.0.3
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
    • All Android licenses accepted.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe

[√] Android Studio (version 3.6)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 45.0.1
    • Dart plugin version 192.7761
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)

[√] Connected device (3 available)
    • AOSP on IA Emulator • emulator-5554 • android-x86    • Android 9 (API 28) (emulator)
    • Chrome              • chrome        • web-javascript • Google Chrome 80.0.3987.163
    • Web Server          • web-server    • web-javascript • Flutter Tools

• No issues found!

compiler message: file:///Users/Ryan/Applications/flutter/.pub-cache/git/flutterial_components-987e83ceb2328f5400991a50b7a476d48e5e3e5d/lib/src/theme_service.dart:34:22: Error: Getter not found: 'JSON'. compiler message: final themeMap = JSON.decode(jsonTheme); compiler message: ^^^^ compiler message: file:///Users/Ryan/Applications/flutter/.pub-cache/git/flutterial_components-987e83ceb2328f5400991a50b7a476d48e5e3e5d/lib/src/theme_service.dart:34:22: Error: The getter 'JSON' isn't defined for the class '#lib1::ThemeService'. compiler message: Try correcting the name to the name of an existing getter, or defining a getter or field named 'JSON'. compiler message: final themeMap = JSON.decode(jsonTheme);

In the generated theme data, input errorStyle overrides ThemeData.errorColor

final ThemeData myTheme = ThemeData(
errorColor: Color(0xffd32f2f), 

inputDecorationTheme: InputDecorationTheme(
    errorStyle: TextStyle(
      color: Color(0xdd000000), // overrides
      fontSize: 16.0,
      fontWeight: FontWeight.w400,
      fontStyle: FontStyle.normal,
 ),
);

With Flutter 3.0, Google has announced support for Material You! Few atomic foundations like color systems, typography, shadows, etc are already available on Material You. Would it be possible to add the support for it?

Thanks!

does not work online, sales error when choosing colors

204 main.dart.js:2645 Uncaught TypeError: Cannot read property 'dv' of null
    at Object.cj (main.dart.js:2645)
    at G1.ri (main.dart.js:19133)
    at Dx.$1 (main.dart.js:18040)
    at ai0 (main.dart.js:1961)
    at HTMLElement.<anonymous> (main.dart.js:1969)

"Dart function requires allowInterop to be passed to JavaScript." at panache_web at exportTheme (main.dart:59) at jsSaveTheme(code, filename, (success) => print('export $success'));

solve jsSaveTheme(code, filename, allowInterop((success) => print('export $success')));

Target dart2js failed: Exception: ../panache_ui/lib/src/screens/editor/controls/color_picker/color_slider.dart:1101:9:
Error: The superclass, 'Diagnosticable', has no unnamed constructor that takes no arguments.
  const GradientSliderThemeData({
        ^^^^^^^^^^^^^^^^^^^^^^^
Error: Compilation failed.