How to add opacity a container in flutter? Fade a container?

<p>Let's see how to add Opacity to a container in flutter.</p> <p>Here is the expected outcome of this example.</p> <p>![](../../../Uploads/b516e64c-8afd-4738-9af2-8c84f1d11266.jpgwidth="50%height="auto](</p> <p>You can achieve this using the Opacity widget.</p> <p>Here is the complete code from main.dart file.</p> <p id="4ec9b0;](MyApp());" color:="" color:=>color: #9cdcfe;](args) </p> <p id="9cdcfe;](key" color:= color:=>color: #569cd6;](class color: #4ec9b0;](MyApp color: #569cd6;](extends color: #4ec9b0;](StatelessWidget ); color: #9cdcfe;](@ color: #9cdcfe;](override</p> <p>color: #4ec9b0;](Widget color: #dcdcaa;](build(color: #4ec9b0;](BuildContext color: #9cdcfe;](context) { color: #c586c0;](return color: #569cd6;](const color: #4ec9b0;](MaterialApp( color: #9cdcfe;](home: color: #4ec9b0;](Scaffold( color: #9cdcfe;](body: color: #4ec9b0;](MyLayoutWidget(), ), ); } }</p> <p id="9cdcfe;](key," color:= color:="" color:="">color: #569cd6;](class color: #4ec9b0;](MyLayoutWidget color: #569cd6;](extends color: #4ec9b0;](StatelessWidget ); color: #9cdcfe;](@ color: #9cdcfe;](override</p> <p>color: #4ec9b0;](Widget color: #dcdcaa;](build(color: #4ec9b0;](BuildContext color: #9cdcfe;](context) { color: #c586c0;](return color: #4ec9b0;](Center( color: #9cdcfe;](child: color: #4ec9b0;](Column( color: #9cdcfe;](mainAxisAlignment: color: #4ec9b0;](MainAxisAlignment.color: #4fc1ff;](spaceEvenly, color: #9cdcfe;](children: [ color: #4ec9b0;](Opacity( color: #9cdcfe;](opacity: color: #b5cea8;](0.5, color: #9cdcfe;](child: color: #4ec9b0;](Container( color: #9cdcfe;](height: color: #b5cea8;](200, color: #9cdcfe;](width: color: #b5cea8;](200, color: #9cdcfe;](color: color: #4ec9b0;](Colors.color: #9cdcfe;](blue, color: #9cdcfe;](child: color: #569cd6;](const color: #4ec9b0;](Center(color: #9cdcfe;](child: color: #4ec9b0;](Text(color: #ce9178;]("With Opacity")), ), ), color: #4ec9b0;](Container( color: #9cdcfe;](height: color: #b5cea8;](200, color: #9cdcfe;](width: color: #b5cea8;](200, color: #9cdcfe;](color: color: #4ec9b0;](Colors.color: #9cdcfe;](blue, color: #9cdcfe;](child: color: #569cd6;](const color: #4ec9b0;](Center(color: #9cdcfe;](child: color: #4ec9b0;](Text(color: #ce9178;]("Without Opacity")), ) ], ), ); } } ` Thanks,Srikanth</p>