Changed FAB to look more like new Gmail

lib/ui/common/email_fab.dart

@@ -10,23 +10,65 @@ class EmailFAB extends StatelessWidget {
     return FloatingActionButton(
       backgroundColor:
           Theme.of(context).brightness == Brightness.dark ? null : Colors.white,
-      child: ShaderMask(
-        shaderCallback: (Rect bounds) {
-          return RadialGradient(
-            center: Alignment.center,
-            radius: 1.0,
-            colors: <Color>[
-              Colors.yellowAccent,
-              Colors.blueAccent,
-              Colors.redAccent,
-              Colors.greenAccent,
-            ],
-            tileMode: TileMode.mirror,
-          ).createShader(bounds);
-        },
-        child: Icon(Icons.add, size: 40.0),
+      // child: ShaderMask(
+      //   shaderCallback: (Rect bounds) {
+      //     return RadialGradient(
+      //       center: Alignment.center,
+      //       radius: 1.0,
+      //       colors: <Color>[
+      //         Colors.yellowAccent,
+      //         Colors.blueAccent,
+      //         Colors.redAccent,
+      //         Colors.greenAccent,
+      //       ],
+      //       tileMode: TileMode.mirror,
+      //     ).createShader(bounds);
+      //   },
+      //   child: Icon(Icons.add, size: 40.0),
+      // ),
+      child: CustomPaint(
+        child: Container(),
+        foregroundPainter: FloatingPainter(),
       ),
       onPressed: () {},
     );
   }
 }
+
+class FloatingPainter extends CustomPainter {
+  @override
+  void paint(Canvas canvas, Size size) {
+    Paint amberPaint = Paint()
+      ..color = Colors.amber
+      ..strokeWidth = 5;
+
+    Paint greenPaint = Paint()
+      ..color = Colors.green
+      ..strokeWidth = 5;
+
+    Paint bluePaint = Paint()
+      ..color = Colors.blue
+      ..strokeWidth = 5;
+
+    Paint redPaint = Paint()
+      ..color = Colors.red
+      ..strokeWidth = 5;
+
+    canvas.drawLine(Offset(size.width * 0.27, size.height * 0.5),
+        Offset(size.width * 0.5, size.height * 0.5), amberPaint);
+    canvas.drawLine(
+        Offset(size.width * 0.5, size.height * 0.5),
+        Offset(size.width * 0.5, size.height - (size.height * 0.27)),
+        greenPaint);
+    canvas.drawLine(Offset(size.width * 0.5, size.height * 0.5),
+        Offset(size.width - (size.width * 0.27), size.height * 0.5), bluePaint);
+    canvas.drawLine(Offset(size.width * 0.5, size.height * 0.5),
+        Offset(size.width * 0.5, size.height * 0.27), redPaint);
+  }
+
+  @override
+  bool shouldRepaint(FloatingPainter oldDelegate) => false;
+
+  @override
+  bool shouldRebuildSemantics(FloatingPainter oldDelegate) => false;
+}

pubspec.lock

@@ -108,7 +108,7 @@ packages:
       name: pedantic
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.0"
+    version: "1.4.0"
   quiver:
     dependency: transitive
     description:
@@ -185,4 +185,4 @@ packages:
     source: hosted
     version: "2.0.8"
 sdks:
-  dart: ">=2.1.1-dev.0.0 <3.0.0"
+  dart: ">=2.1.0 <3.0.0"