Change return type of method 'InitializeCache' from 'System.Collections.Generic.IReadOnlyDictionary<TEnum, TAttribute>' to 'System.Collections.Generic.Dictionary<TEnum, TAttribute>' for improved performance (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1859)

Change return type of method 'InitializeCardIdTable' from 'System.Collections.Generic.IReadOnlyDictionary<ThScoreFileConverter.Core.Models.Th075.Chara, System.Collections.Generic.IEnumerable<int>>' to 'System.Collections.Generic.Dictionary<ThScoreFileConverter.Core.Models.Th075.Chara, System.Collections.Generic.IEnumerable<int>>' for improved performance (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1859)

Type 'TEnum' is incompatible with type 'int' and cast attempts will throw InvalidCastException at runtime (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2021)

Change type of field 'SQObjectReaders' from 'System.Collections.Generic.IReadOnlyDictionary<ThScoreFileConverter.Squirrel.SQObjectType, System.Func<System.IO.BinaryReader, ThScoreFileConverter.Squirrel.SQObject>>' to 'System.Collections.Generic.Dictionary<ThScoreFileConverter.Squirrel.SQObjectType, System.Func<System.IO.BinaryReader, ThScoreFileConverter.Squirrel.SQObject>>' for improved performance (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1859)

Change type of field 'ConverterTypes' from 'System.Collections.Generic.IReadOnlyDictionary<string, System.Type>' to 'System.Collections.Generic.Dictionary<string, System.Type>' for improved performance (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1859)

Change return type of method 'NewFileMayBeBrokenException' from 'System.Exception' to 'System.IO.InvalidDataException' for improved performance (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1859)

Change type of field 'adapter' from 'ThScoreFileConverter.Adapters.IResourceDictionaryAdapter' to 'ThScoreFileConverter.Adapters.ResourceDictionaryAdapter' for improved performance (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1859)

Change type of property 'Encodings' from 'System.Collections.Generic.IDictionary<int, System.Text.Encoding>' to 'System.Collections.Generic.Dictionary<int, System.Text.Encoding>' for improved performance (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1859)

Change type of field 'SQObjectReaders' from 'System.Collections.Generic.IReadOnlyDictionary<ThScoreFileConverter.Squirrel.SQObjectType, System.Func<System.IO.BinaryReader, ThScoreFileConverter.Squirrel.SQObject>>' to 'System.Collections.Generic.Dictionary<ThScoreFileConverter.Squirrel.SQObjectType, System.Func<System.IO.BinaryReader, ThScoreFileConverter.Squirrel.SQObject>>' for improved performance (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1859)