Nova Tela Flutter

Código da tela

home: Column(
        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: [
              Container(
                color: Colors.tealAccent,
                height: 120,
                width: 120,
              ),
              Container(
                color: Colors.yellowAccent,
                height: 120,
                width: 120,
              ),
              Container(
                color: Colors.lightBlue,
                height: 120,
                width: 120,
              ),
            ],
          ),
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: [
              Container(
                color: Colors.purple,
                height: 120,
                width: 120,
              ),
              Container(
                color: Colors.cyanAccent,
                height: 120,
                width: 120,
              ),
              Container(
                color: Colors.pinkAccent,
                height: 120,
                width: 120,
              ),
            ],
          ),
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: [
              Container(
                color: Colors.indigoAccent,
                height: 120,
                width: 120,
              ),
              Container(
                color: Colors.grey,
                height: 120,
                width: 120,
              ),
              Container(
                color: Colors.orangeAccent,
                height: 120,
                width: 120,
              ),
            ],
          ),
        ],
      ),

visualização (chrome)