add text.light

lib/extension/text_extension.dart

@@ -43,6 +43,11 @@ extension TextExtension on Text {
     );
   }
 
+  Text get light => Text(
+        this.data,
+        style: this.style?.light ?? TextStyle().light,
+      );
+
   Text copyWith({
     FontWeight fontWeight,
     Color color,

lib/extension/text_style_extension.dart

@@ -16,4 +16,7 @@ extension TextStyleExtension on TextStyle {
   TextStyle get black => this.copyWith(color: kTextColor);
 
   TextStyle get black65 => this.copyWith(color: kTextSubColor);
+
+  ///FontWeight:w300
+  TextStyle get light => this.copyWith(fontWeight: FontWeight.w300);
 }