4. Border Alert With Icon

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

Container(
  padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 20),
  decoration: BoxDecoration(
    color: Colors.green.shade50,
    borderRadius: BorderRadius.circular(16),
    border: Border.all(
      color: Colors.green,
    ),
  ),
  alignment: Alignment.centerLeft,
  child: const Row(
    children: [
      Icon(
        Icons.info_outline_rounded,
        color: Colors.green,
      ),
      Gap(12),
      Expanded(
        child: Text(
          'Change a few things up and try submitting!',
          style: TextStyle(
            fontWeight: FontWeight.w600,
            fontSize: 14,
            color: Colors.green,
          ),
        ),
      ),
    ],
  ),
),