The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

Using directives should be ordered alphabetically by the namespaces (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1210.md)

Using directives should be ordered alphabetically by the namespaces (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1210.md)

Code should not contain multiple blank lines in a row (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1507.md)

Do not declare visible instance fields (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1051)

Do not declare visible instance fields (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1051)

Type SixLabors.ImageSharp.Tests.TestFormat.TestPixelForAgnosticDecode should override Equals because it implements IEquatable<T> (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1067)

Single-line comment should be preceded by blank line (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1515.md)