Fix warnings

Author: singerdmx

lib/src/widgets/default_styles.dart

@@ -202,7 +202,7 @@ class DefaultStyles {
 
     final inlineCodeStyle = TextStyle(
       fontSize: 14,
-      color: themeData.colorScheme.primaryVariant.withOpacity(0.8),
+      color: themeData.colorScheme.primary.withOpacity(0.8),
       fontFamily: fontFamily,
     );