[IDEA-328501] Support semantic highlighting for Dart / Support Rainbow Variables for Dart

Have you checked the issues and discussions to ensure there are no duplicates?

Yes

Your programming languages

Dart

Free or paid?

Paid users

Expected Behavior

Dart variables color

Code snippet for test

import 'package:flutter/material.dart';
import 'dart:io';

class WiFiSerialCommunication extends StatefulWidget {
  @override
  _WiFiSerialCommunicationState createState() => _WiFiSerialCommunicationState();
}

class _WiFiSerialCommunicationState extends State<WiFiSerialCommunication> {
  Socket? _socket;

  void connectToDevice(String ip, int port) async {
    try {
      _socket = await Socket.connect(ip, port);
      print('Connected to: ${_socket!.remoteAddress.address}:${_socket!.remotePort}');

      // Listen for responses from the server
      _socket!.listen((data) {
        print('Received: ${String.fromCharCodes(data)}');
      });
    } catch (e) {
      print('Failed to connect: $e');
    }
  }

  void sendMessage(String message) {
    if (_socket != null) {
      _socket!.add(utf8.encode(message));
    }
  }

  @override
  void dispose() {
    _socket?.close();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Wi-Fi Serial Communication'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ElevatedButton(
              onPressed: () {
                connectToDevice('192.168.1.100', 23); // Replace with your device IP and port
              },
              child: Text('Connect to Device'),
            ),
            ElevatedButton(
              onPressed: () {
                sendMessage('Hello Device');
              },
              child: Text('Send Message'),
            ),
          ],
        ),
      ),
    );
  }
}

Your Environment

Android Studio Koala | 2024.1.1 RC 1 Build #AI-241.15989.150.2411.11887322, built on May 25, 2024 Runtime version: 17.0.10+0--11609105 amd64 VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o. Windows 11.0 GC: G1 Young Generation, G1 Old Generation Memory: 3072M Cores: 20 Registry: debugger.new.tool.window.layout=true ide.experimental.ui=true terminal.new.ui=true Non-Bundled Plugins: com.intellij.marketplace (241.15989.199) Dart (241.17502) izhangzhihao.rainbow.brackets (2024.2.4-241) io.flutter (79.2.3) cn.yiiguxing.plugin.translate (3.6.1)

izhangzhihao / intellij-rainbow-brackets