improvement: style tweaks

lib/widgets/label.dart

@@ -3,24 +3,29 @@ import 'package:git_touch/utils/utils.dart';
 
 class Label extends StatelessWidget {
   final String name;
+  final Color color;
   final String cssColor;
 
-  Label({this.name, this.cssColor});
+  Label({
+    @required this.name,
+    this.color,
+    this.cssColor,
+  });
 
   @override
   Widget build(BuildContext context) {
-    final color = convertColor(cssColor);
+    final _color = color ?? convertColor(cssColor);
     return Container(
       padding: EdgeInsets.symmetric(vertical: 2, horizontal: 6),
       decoration: BoxDecoration(
-        color: color,
+        color: _color,
         borderRadius: BorderRadius.all(Radius.circular(4)),
       ),
       child: Text(
         name,
         style: TextStyle(
-          fontSize: 12,
-          color: getFontColorByBrightness(color),
+          fontSize: 13,
+          color: getFontColorByBrightness(_color),
           fontWeight: FontWeight.w600,
         ),
       ),