Possible null reference argument for parameter 'encoder' in 'void Image.Save(Stream stream, ImageCodecInfo encoder, EncoderParameters? encoderParams)'.

Dereference of a possibly null reference.

'Exception.Exception(SerializationInfo, StreamingContext)' is obsolete: 'This API supports obsolete formatter-based serialization. It should not be called or extended by application code.' (https://aka.ms/dotnet-warnings/SYSLIB0051)

Possible null reference argument for parameter 'fileName' in 'string StringExtensions.SanitizeFileName(string fileName, string? replaceWith)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'item' in 'Color VisualStyleStripRenderer.GetItemTextColor(ToolStripItem item)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Converting null literal or possible null value to non-nullable type.