anchor.diff:  
         // Convert filenames to valid Dart identifiers
         final name = filename
  -          .substring(0, filename.length - svg_extension.length)
  +          .substring(0, filename.length - svgExtension.length)
             .replaceAll("-", "_");
         buffer.write('const $name = "$data";\n');
       }
  
positive.code: 
    @override
    classifyPrimary(AssetId id) {
      if (!id.path.endsWith(svg_extension)) {
        return null;
      }
  
  
negative.code: import 'package:path/path.dart';
  import 'src/image_inlining/image_inliner.dart';
  
  const svgExtension = ".svg";
  
  /// Transformer that compiles several image files to a Dart source file with
  /// constant definitions that has these image files Base64-encoded.
  