improvement: style tweaks

lib/widgets/label.dart

@@ -0,0 +1,29 @@
+import 'package:flutter/material.dart';
+import 'package:git_touch/utils/utils.dart';
+
+class Label extends StatelessWidget {
+  final String name;
+  final String cssColor;
+
+  Label({this.name, this.cssColor});
+
+  @override
+  Widget build(BuildContext context) {
+    final color = convertColor(cssColor);
+    return Container(
+      padding: EdgeInsets.symmetric(vertical: 2, horizontal: 6),
+      decoration: BoxDecoration(
+        color: color,
+        borderRadius: BorderRadius.all(Radius.circular(4)),
+      ),
+      child: Text(
+        name,
+        style: TextStyle(
+          fontSize: 12,
+          color: getFontColorByBrightness(color),
+          fontWeight: FontWeight.w600,
+        ),
+      ),
+    );
+  }
+}