BoxDecoration renders color beyond borders.

When rendering a BoxDecoration with a color and a border with rounded corners, the color bleeds past the rounded corners.

return Container(
  decoration: BoxDecoration(
  border: Border.all(color: Colors.white, width: 4.0),
  borderRadius: 10.0,
  color: Colors.red
  ),
);

Please add the output of flutter doctor -v.

[✓] Flutter (Channel beta, v1.0.0, on Mac OS X 10.14.2 18C54, locale en-US)
    • Flutter version 1.0.0 at /Users/GoldenJoe/Development/flutter
    • Framework revision 5391447fae (2 weeks ago), 2018-11-29 19:41:26 -0800
    • Engine revision 7375a0f414
    • Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)

[✓] Android toolchain - develop for Android devices (Android SDK 27.0.3)
    • Android SDK at /Users/GoldenJoe/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling
      support)
    • Platform android-27, build-tools 27.0.3
    • Java binary at: /Applications/Android
      Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build
      1.8.0_152-release-1136-b06)
    • All Android licenses accepted.

[✓] iOS toolchain - develop for iOS devices (Xcode 10.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 10.1, Build version 10B61
    • ios-deploy 1.9.4
    • CocoaPods version 1.5.3

[✓] Android Studio (version 3.2)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 30.0.1
    • Dart plugin version 181.5656
    • Java version OpenJDK Runtime Environment (build
      1.8.0_152-release-1136-b06)

[✓] VS Code (version 1.30.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 2.21.1

I guess this is a duplicate of #13675

Any update on this issue?

I can reproduce the issue

code sample

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Material App',
      // theme: ThemeData.dark(),
      home: Home(),
    );
  }
}

class Home extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Material App Bar'),
      ),
      body: Center(
        child: Container(
          height: 100,
          width: 100,
          decoration: BoxDecoration(
              border: Border.all(color: Colors.white, width: 4.0),
              borderRadius: BorderRadius.all(Radius.circular(10.0)),
              color: Colors.red),
        ),
      ),
      floatingActionButton: FloatingActionButton(
        child: Icon(Icons.add),
        onPressed: () {},
      ),
    );
  }
}

flutter doctor -v

[✓] Flutter (Channel master, 1.24.0-8.0.pre.375, on macOS 11.0.1 20B29
    darwin-x64, locale en-GB)
    • Flutter version 1.24.0-8.0.pre.375 at
      /Users/tahatesser/Code/flutter_master
    • Framework revision a7f5fd5360 (27 hours ago), 2020-11-30 13:14:13 +0100
    • Engine revision 20caf54969
    • Dart version 2.12.0 (build 2.12.0-76.0.dev)

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
    • Android SDK at /Users/tahatesser/Code/sdk
    • Platform android-30, build-tools 30.0.2
    • ANDROID_HOME = /Users/tahatesser/Code/sdk
    • Java binary at: /Applications/Android
      Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build
      1.8.0_242-release-1644-b3-6915495)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 12.2)
    • Xcode at /Volumes/Extreme/Xcode.app/Contents/Developer
    • Xcode 12.2, Build version 12B45b
    • CocoaPods version 1.10.0

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 4.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build
      1.8.0_242-release-1644-b3-6915495)

[✓] VS Code (version 1.51.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.16.0

[✓] Connected device (4 available)
    • RMX2001 (mobile) • EUYTFEUSQSRGDA6D • android-arm64  • Android 10 (API 29)
    • macOS (desktop)  • macos            • darwin-x64     • macOS 11.0.1 20B29
      darwin-x64
    • Web Server (web) • web-server       • web-javascript • Flutter Tools
    • Chrome (web)     • chrome           • web-javascript • Google Chrome
      87.0.4280.67

• No issues found!

I see there's an open issue addressing the case you described. #13675
Please follow up on that issue, I'm closing the current one as a duplicate.
If you disagree, please write in the comments and I will reopen it.
Thank you

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.

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BoxDecoration renders color beyond borders. #25429

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BoxDecoration renders color beyond borders. #25429

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zoechi commented on Dec 16, 2018

GoldenJoe commented on Dec 16, 2018

zoechi commented on Dec 17, 2018

Omi231 commented on Sep 17, 2020

TahaTesser commented on Dec 1, 2020

github-actions commented on Aug 9, 2021

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