Add additional test categories

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataReader/IccDataReaderCurvesTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataReaderCurvesTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataReader/IccDataReaderLutTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataReaderLutTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataReader/IccDataReaderMatrixTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataReaderMatrixTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataReader/IccDataReaderMultiProcessElementTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataReaderMultiProcessElementTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataReader/IccDataReaderNonPrimitivesTests.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataReaderNonPrimitivesTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataReader/IccDataReaderPrimitivesTests.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataReaderPrimitivesTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataReader/IccDataReaderTagDataEntryTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataReaderTagDataEntryTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataReader/IccDataReaderTests.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using System;
@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataReaderTests
     {
         [Fact]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataWriter/IccDataWriterCurvesTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataWriterCurvesTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataWriter/IccDataWriterLutTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataWriterLutTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataWriter/IccDataWriterLutTests1.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataWriterLutTests1
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataWriter/IccDataWriterLutTests2.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataWriterLutTests2
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataWriter/IccDataWriterMatrixTests.cs

@@ -8,8 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
-    using SixLabors.ImageSharp;
-
+    [Trait("Profile", "Icc")]
     public class IccDataWriterMatrixTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataWriter/IccDataWriterMultiProcessElementTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataWriterMultiProcessElementTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataWriter/IccDataWriterNonPrimitivesTests.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataWriterNonPrimitivesTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataWriter/IccDataWriterPrimitivesTests.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataWriterPrimitivesTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataWriter/IccDataWriterTagDataEntryTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataWriterTagDataEntryTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/DataWriter/IccDataWriterTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccDataWriterTests
     {
         [Fact]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/IccProfileTests.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccProfileTests
     {
         [Theory]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/IccReaderTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccReaderTests
     {
         [Fact]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/IccWriterTests.cs

@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccWriterTests
     {
         [Fact]

tests/ImageSharp.Tests/Metadata/Profiles/ICC/Various/IccProfileIdTests.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.Metadata.Profiles.Icc;
@@ -6,6 +6,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Icc
 {
+    [Trait("Profile", "Icc")]
     public class IccProfileIdTests
     {
         [Fact]
@@ -29,4 +30,4 @@ namespace SixLabors.ImageSharp.Tests.Icc
             Assert.Equal(4u, id.Part4);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Binarization/AdaptiveThresholdTests.cs

@@ -9,13 +9,14 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Binarization
 {
+    [Trait("Category", "Processors")]
     public class AdaptiveThresholdTests : BaseImageOperationsExtensionTest
     {
         [Fact]
         public void AdaptiveThreshold_UsesDefaults_Works()
         {
             // arrange
-            var expectedThresholdLimit = .85f;
+            float expectedThresholdLimit = .85f;
             Color expectedUpper = Color.White;
             Color expectedLower = Color.Black;
 
@@ -33,7 +34,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Binarization
         public void AdaptiveThreshold_SettingThresholdLimit_Works()
         {
             // arrange
-            var expectedThresholdLimit = .65f;
+            float expectedThresholdLimit = .65f;
 
             // act
             this.operations.AdaptiveThreshold(expectedThresholdLimit);
@@ -65,7 +66,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Binarization
         public void AdaptiveThreshold_SettingUpperLowerWithThresholdLimit_Works()
         {
             // arrange
-            var expectedThresholdLimit = .77f;
+            float expectedThresholdLimit = .77f;
             Color expectedUpper = Color.HotPink;
             Color expectedLower = Color.Yellow;
 
@@ -83,7 +84,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Binarization
         public void AdaptiveThreshold_SettingUpperLowerWithThresholdLimit_WithRectangle_Works()
         {
             // arrange
-            var expectedThresholdLimit = .77f;
+            float expectedThresholdLimit = .77f;
             Color expectedUpper = Color.HotPink;
             Color expectedLower = Color.Yellow;
 

tests/ImageSharp.Tests/Processing/Binarization/BinaryThresholdTest.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Binarization
 {
+    [Trait("Category", "Processors")]
     public class BinaryThresholdTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Binarization/OrderedDitherFactoryTests.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Binarization
 {
+    [Trait("Category", "Processors")]
     public class OrderedDitherFactoryTests
     {
 #pragma warning disable SA1025 // Code should not contain multiple whitespace in a row

tests/ImageSharp.Tests/Processing/Convolution/BoxBlurTest.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.Processing;
@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Convolution
 {
+    [Trait("Category", "Processors")]
     public class BoxBlurTest : BaseImageOperationsExtensionTest
     {
         [Fact]
@@ -36,4 +37,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Convolution
             Assert.Equal(5, processor.Radius);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Convolution/DetectEdgesTest.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Convolution
 {
+    [Trait("Category", "Processors")]
     [SuppressMessage("StyleCop.CSharp.NamingRules", "SA1313:Parameter names should begin with lower-case letter", Justification = "OK. Used for TheoryData compatibility.")]
     public class DetectEdgesTest : BaseImageOperationsExtensionTest
     {

tests/ImageSharp.Tests/Processing/Convolution/GaussianBlurTest.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.Processing;
@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Convolution
 {
+    [Trait("Category", "Processors")]
     public class GaussianBlurTest : BaseImageOperationsExtensionTest
     {
         [Fact]
@@ -36,4 +37,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Convolution
             Assert.Equal(.6f, processor.Sigma);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Convolution/GaussianSharpenTest.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Convolution
 {
+    [Trait("Category", "Processors")]
     public class GaussianSharpenTest : BaseImageOperationsExtensionTest
     {
         [Fact]
@@ -36,4 +37,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Convolution
             Assert.Equal(.6f, processor.Sigma);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Dithering/DitherTest.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Binarization
 {
+    [Trait("Category", "Processors")]
     public class DitherTest : BaseImageOperationsExtensionTest
     {
         private class Assert : Xunit.Assert

tests/ImageSharp.Tests/Processing/Effects/BackgroundColorTest.cs

@@ -3,11 +3,11 @@
 
 using SixLabors.ImageSharp.Processing;
 using SixLabors.ImageSharp.Processing.Processors.Overlays;
-using SixLabors.ImageSharp.Tests.TestUtilities;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Effects
 {
+    [Trait("Category", "Processors")]
     public class BackgroundColorTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Effects/OilPaintTest.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Effects
 {
+    [Trait("Category", "Processors")]
     public class OilPaintTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Effects/PixelateTest.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Effects
 {
+    [Trait("Category", "Processors")]
     public class PixelateTest : BaseImageOperationsExtensionTest
     {
         [Fact]
@@ -36,4 +37,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Effects
             Assert.Equal(23, processor.Size);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Filters/BlackWhiteTest.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Filters
 {
+    [Trait("Category", "Processors")]
     public class BlackWhiteTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Filters/BrightnessTest.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Effects
 {
+    [Trait("Category", "Processors")]
     public class BrightnessTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Filters/ColorBlindnessTest.cs

@@ -12,6 +12,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Filters
 {
+    [Trait("Category", "Processors")]
     public class ColorBlindnessTest : BaseImageOperationsExtensionTest
     {
         public static IEnumerable<object[]> TheoryData = new[]

tests/ImageSharp.Tests/Processing/Filters/ContrastTest.cs

@@ -1,13 +1,13 @@
 // Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
+using SixLabors.ImageSharp.Processing;
+using SixLabors.ImageSharp.Processing.Processors.Filters;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Effects
 {
-    using SixLabors.ImageSharp.Processing;
-    using SixLabors.ImageSharp.Processing.Processors.Filters;
-
+    [Trait("Category", "Processors")]
     public class ContrastTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Filters/FilterTest.cs

@@ -1,13 +1,13 @@
 // Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
+using SixLabors.ImageSharp.Processing;
+using SixLabors.ImageSharp.Processing.Processors.Filters;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Filters
 {
-    using SixLabors.ImageSharp.Processing;
-    using SixLabors.ImageSharp.Processing.Processors.Filters;
-
+    [Trait("Category", "Processors")]
     public class FilterTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Filters/GrayscaleTest.cs

@@ -12,6 +12,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Filters
 {
+    [Trait("Category", "Processors")]
     public class GrayscaleTest : BaseImageOperationsExtensionTest
     {
         public static IEnumerable<object[]> ModeTheoryData = new[]

tests/ImageSharp.Tests/Processing/Filters/HueTest.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.Processing;
@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Filters
 {
+    [Trait("Category", "Processors")]
     public class HueTest : BaseImageOperationsExtensionTest
     {
         [Fact]
@@ -28,4 +29,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Filters
             Assert.Equal(5f, processor.Degrees);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Filters/InvertTest.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Effects
 {
+    [Trait("Category", "Processors")]
     public class InvertTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Filters/KodachromeTest.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Filters
 {
+    [Trait("Category", "Processors")]
     public class KodachromeTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Filters/LightnessTest.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Effects
 {
+    [Trait("Category", "Processors")]
     public class LightnessTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Filters/LomographTest.cs

@@ -1,15 +1,14 @@
 // Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
+using SixLabors.ImageSharp.Processing;
+using SixLabors.ImageSharp.Processing.Processors.Filters;
 using SixLabors.ImageSharp.Tests.Processing;
-
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests
 {
-    using SixLabors.ImageSharp.Processing;
-    using SixLabors.ImageSharp.Processing.Processors.Filters;
-
+    [Trait("Category", "Processors")]
     public class LomographTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Filters/OpacityTest.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.Processing;
@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Effects
 {
+    [Trait("Category", "Processors")]
     public class OpacityTest : BaseImageOperationsExtensionTest
     {
         [Fact]
@@ -27,4 +28,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Effects
             Assert.Equal(.6f, processor.Amount);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Filters/PolaroidTest.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Filters
 {
+    [Trait("Category", "Processors")]
     public class PolaroidTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Filters/SaturateTest.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.Processing;
@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Filters
 {
+    [Trait("Category", "Processors")]
     public class SaturateTest : BaseImageOperationsExtensionTest
     {
         [Fact]
@@ -27,4 +28,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Filters
             Assert.Equal(5, processor.Amount);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Filters/SepiaTest.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Filters
 {
+    [Trait("Category", "Processors")]
     public class SepiaTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Normalization/HistogramEqualizationTests.cs

@@ -9,6 +9,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Normalization
 {
+    [Trait("Category", "Processors")]
     // ReSharper disable InconsistentNaming
     public class HistogramEqualizationTests
     {

tests/ImageSharp.Tests/Processing/Overlays/GlowTest.cs

@@ -1,14 +1,13 @@
 // Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
-using SixLabors.ImageSharp.PixelFormats;
 using SixLabors.ImageSharp.Processing;
 using SixLabors.ImageSharp.Processing.Processors.Overlays;
-using SixLabors.ImageSharp.Tests.TestUtilities;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Overlays
 {
+    [Trait("Category", "Processors")]
     public class GlowTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Overlays/VignetteTest.cs

@@ -3,11 +3,11 @@
 
 using SixLabors.ImageSharp.Processing;
 using SixLabors.ImageSharp.Processing.Processors.Overlays;
-using SixLabors.ImageSharp.Tests.TestUtilities;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Overlays
 {
+    [Trait("Category", "Processors")]
     public class VignetteTest : BaseImageOperationsExtensionTest
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Processors/Binarization/BinaryDitherTests.cs

@@ -11,6 +11,7 @@ using Xunit;
 // ReSharper disable InconsistentNaming
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Binarization
 {
+    [Trait("Category", "Processors")]
     public class BinaryDitherTests
     {
         public static readonly string[] CommonTestImages =

tests/ImageSharp.Tests/Processing/Processors/Binarization/BinaryThresholdTest.cs

@@ -4,12 +4,12 @@
 using System.Globalization;
 using SixLabors.ImageSharp.PixelFormats;
 using SixLabors.ImageSharp.Processing;
-using SixLabors.ImageSharp.Processing.Processors.Binarization;
 using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Binarization
 {
+    [Trait("Category", "Processors")]
     public class BinaryThresholdTest
     {
         public static readonly TheoryData<float> BinaryThresholdValues

tests/ImageSharp.Tests/Processing/Processors/Convolution/BokehBlurTest.cs

@@ -16,6 +16,7 @@ using Xunit.Abstractions;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Convolution
 {
+    [Trait("Category", "Processors")]
     public class BokehBlurTest
     {
         private static readonly string Components10x2 = @"

tests/ImageSharp.Tests/Processing/Processors/Convolution/BoxBlurTest.cs

@@ -1,10 +1,12 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.Processing;
+using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Convolution
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Convolution")]
     public class BoxBlurTest : Basic1ParameterConvolutionTests
     {
@@ -13,4 +15,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Convolution
         protected override void Apply(IImageProcessingContext ctx, int value, Rectangle bounds) =>
             ctx.BoxBlur(value, bounds);
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Convolution/DetectEdgesTest.cs

@@ -11,6 +11,7 @@ using Xunit;
 // ReSharper disable InconsistentNaming
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Convolution
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Convolution")]
     [SuppressMessage("StyleCop.CSharp.NamingRules", "SA1313:Parameter names should begin with lower-case letter", Justification = "OK. Used for TheoryData compatibility.")]
     public class DetectEdgesTest

tests/ImageSharp.Tests/Processing/Processors/Convolution/GaussianBlurTest.cs

@@ -1,10 +1,12 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.Processing;
+using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Convolution
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Convolution")]
     public class GaussianBlurTest : Basic1ParameterConvolutionTests
     {
@@ -13,4 +15,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Convolution
         protected override void Apply(IImageProcessingContext ctx, int value, Rectangle bounds) =>
             ctx.GaussianBlur(value, bounds);
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Convolution/GaussianSharpenTest.cs

@@ -2,9 +2,11 @@
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.Processing;
+using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Convolution
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Convolution")]
     public class GaussianSharpenTest : Basic1ParameterConvolutionTests
     {
@@ -13,4 +15,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Convolution
         protected override void Apply(IImageProcessingContext ctx, int value, Rectangle bounds) =>
             ctx.GaussianSharpen(value, bounds);
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Dithering/DitherTests.cs

@@ -10,6 +10,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Binarization
 {
+    [Trait("Category", "Processors")]
     public class DitherTests
     {
         public const PixelTypes CommonNonDefaultPixelTypes =

tests/ImageSharp.Tests/Processing/Processors/Effects/BackgroundColorTest.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Effects")]
     public class BackgroundColorTest
     {

tests/ImageSharp.Tests/Processing/Processors/Effects/OilPaintTest.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Effects")]
     public class OilPaintTest
     {

tests/ImageSharp.Tests/Processing/Processors/Effects/PixelShaderTest.cs

@@ -11,6 +11,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Effects")]
     public class PixelShaderTest
     {

tests/ImageSharp.Tests/Processing/Processors/Effects/PixelateTest.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Effects")]
     public class PixelateTest
     {
@@ -30,4 +31,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
             provider.RunRectangleConstrainedValidatingProcessorTest((x, rect) => x.Pixelate(value, rect), value);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Filters/BlackWhiteTest.cs

@@ -1,15 +1,14 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
+using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
 {
-    using SixLabors.ImageSharp.Processing;
-    using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class BlackWhiteTest
     {
@@ -21,4 +20,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
             provider.RunValidatingProcessorTest(ctx => ctx.BlackWhite(), comparer: ImageComparer.TolerantPercentage(0.002f));
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Filters/BrightnessTest.cs

@@ -2,14 +2,13 @@
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
+using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
 {
-    using SixLabors.ImageSharp.Processing;
-    using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class BrightnessTest
     {

tests/ImageSharp.Tests/Processing/Processors/Filters/ColorBlindnessTest.cs

@@ -1,15 +1,14 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
+using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
 {
-    using SixLabors.ImageSharp.Processing;
-    using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class ColorBlindnessTest
     {
@@ -33,4 +32,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         public void ApplyColorBlindnessFilter<TPixel>(TestImageProvider<TPixel> provider, ColorBlindnessMode colorBlindness)
             where TPixel : unmanaged, IPixel<TPixel> => provider.RunValidatingProcessorTest(x => x.ColorBlindness(colorBlindness), colorBlindness.ToString(), this.imageComparer);
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Filters/ContrastTest.cs

@@ -2,13 +2,12 @@
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
 {
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class ContrastTest
     {

tests/ImageSharp.Tests/Processing/Processors/Filters/FilterTest.cs

@@ -2,14 +2,13 @@
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
+using SixLabors.ImageSharp.Processing;
 using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
 {
-    using SixLabors.ImageSharp;
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class FilterTest
     {

tests/ImageSharp.Tests/Processing/Processors/Filters/GrayscaleTest.cs

@@ -2,13 +2,12 @@
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
 {
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class GrayscaleTest
     {

tests/ImageSharp.Tests/Processing/Processors/Filters/HueTest.cs

@@ -2,13 +2,12 @@
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
 {
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class HueTest
     {

tests/ImageSharp.Tests/Processing/Processors/Filters/InvertTest.cs

@@ -1,14 +1,13 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
 {
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class InvertTest
     {
@@ -20,4 +19,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
             provider.RunValidatingProcessorTest(x => x.Invert());
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Filters/KodachromeTest.cs

@@ -1,14 +1,13 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
 {
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class KodachromeTest
     {
@@ -20,4 +19,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
             provider.RunValidatingProcessorTest(x => x.Kodachrome());
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Filters/LightnessTest.cs

@@ -2,14 +2,13 @@
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
+using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
 {
-    using SixLabors.ImageSharp.Processing;
-    using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class LightnessTest
     {

tests/ImageSharp.Tests/Processing/Processors/Filters/LomographTest.cs

@@ -1,14 +1,13 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
 {
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class LomographTest
     {
@@ -20,4 +19,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
             provider.RunValidatingProcessorTest(x => x.Lomograph());
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Filters/OpacityTest.cs

@@ -2,13 +2,12 @@
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
 {
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class OpacityTest
     {

tests/ImageSharp.Tests/Processing/Processors/Filters/PolaroidTest.cs

@@ -1,14 +1,13 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
 {
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class PolaroidTest
     {
@@ -20,4 +19,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
             provider.RunValidatingProcessorTest(x => x.Polaroid());
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Filters/SaturateTest.cs

@@ -2,13 +2,12 @@
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
 {
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class SaturateTest
     {

tests/ImageSharp.Tests/Processing/Processors/Filters/SepiaTest.cs

@@ -1,14 +1,13 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
 {
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     [GroupOutput("Filters")]
     public class SepiaTest
     {
@@ -20,4 +19,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
             provider.RunValidatingProcessorTest(x => x.Sepia());
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Overlays/GlowTest.cs

@@ -1,10 +1,12 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.Processing;
+using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Overlays
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Overlays")]
     public class GlowTest : OverlayTestBase
     {
@@ -15,4 +17,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Overlays
 
         protected override void Apply(IImageProcessingContext ctx, Rectangle rect) => ctx.Glow(rect);
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Overlays/OverlayTestBase.cs

@@ -9,6 +9,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Overlays
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Overlays")]
     public abstract class OverlayTestBase
     {

tests/ImageSharp.Tests/Processing/Processors/Overlays/VignetteTest.cs

@@ -1,10 +1,12 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.Processing;
+using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Overlays
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Overlays")]
     public class VignetteTest : OverlayTestBase
     {
@@ -15,4 +17,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Overlays
 
         protected override void Apply(IImageProcessingContext ctx, Rectangle rect) => ctx.Vignette(rect);
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Quantization/OctreeQuantizerTests.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Quantization
 {
+    [Trait("Category", "Processors")]
     public class OctreeQuantizerTests
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Processors/Quantization/PaletteQuantizerTests.cs

@@ -8,9 +8,10 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Quantization
 {
+    [Trait("Category", "Processors")]
     public class PaletteQuantizerTests
     {
-        private static readonly Color[] Palette = new Color[] { Color.Red, Color.Green, Color.Blue };
+        private static readonly Color[] Palette = { Color.Red, Color.Green, Color.Blue };
 
         [Fact]
         public void PaletteQuantizerConstructor()

tests/ImageSharp.Tests/Processing/Processors/Quantization/QuantizerTests.cs

@@ -11,6 +11,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Quantization
 {
+    [Trait("Category", "Processors")]
     public class QuantizerTests
     {
         /// <summary>

tests/ImageSharp.Tests/Processing/Processors/Quantization/WuQuantizerTests.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Quantization
 {
+    [Trait("Category", "Processors")]
     public class WuQuantizerTests
     {
         [Fact]

tests/ImageSharp.Tests/Processing/Processors/Transforms/AffineTransformTests.cs

@@ -14,6 +14,7 @@ using Xunit.Abstractions;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Transforms
 {
+    [Trait("Category", "Processors")]
     public class AffineTransformTests
     {
         private readonly ITestOutputHelper output;

tests/ImageSharp.Tests/Processing/Processors/Transforms/AutoOrientTests.cs

@@ -11,6 +11,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Transforms")]
     public class AutoOrientTests
     {

tests/ImageSharp.Tests/Processing/Processors/Transforms/CropTest.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using System;
@@ -11,6 +11,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Transforms")]
     public class CropTest
     {
@@ -29,4 +30,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
                 comparer: ImageComparer.Exact);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Transforms/EntropyCropTest.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Transforms")]
     public class EntropyCropTest
     {

tests/ImageSharp.Tests/Processing/Processors/Transforms/FlipTests.cs

@@ -9,6 +9,7 @@ using Xunit;
 // ReSharper disable InconsistentNaming
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Transforms")]
     public class FlipTests
     {

tests/ImageSharp.Tests/Processing/Processors/Transforms/PadTest.cs

@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     public class PadTest
     {
         public static readonly string[] CommonTestImages =

tests/ImageSharp.Tests/Processing/Processors/Transforms/ResamplerTests.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     public class ResamplerTests
     {
         [Theory]

tests/ImageSharp.Tests/Processing/Processors/Transforms/ResizeHelperTests.cs

@@ -8,6 +8,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     public class ResizeHelperTests
     {
         [Theory]

tests/ImageSharp.Tests/Processing/Processors/Transforms/ResizeKernelMapTests.ReferenceKernelMap.cs

@@ -5,9 +5,11 @@ using System.Collections.Generic;
 using System.Linq;
 
 using SixLabors.ImageSharp.Processing.Processors.Transforms;
+using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     public partial class ResizeKernelMapTests
     {
         /// <summary>

tests/ImageSharp.Tests/Processing/Processors/Transforms/ResizeKernelMapTests.cs

@@ -13,6 +13,7 @@ using Xunit.Abstractions;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     public partial class ResizeKernelMapTests
     {
         private ITestOutputHelper Output { get; }

tests/ImageSharp.Tests/Processing/Processors/Transforms/ResizeTests.cs

@@ -5,7 +5,6 @@ using System;
 using System.Linq;
 using System.Numerics;
 using System.Runtime.CompilerServices;
-using SixLabors.ImageSharp.Advanced;
 using SixLabors.ImageSharp.PixelFormats;
 using SixLabors.ImageSharp.Processing;
 using SixLabors.ImageSharp.Processing.Processors.Transforms;
@@ -16,6 +15,7 @@ using Xunit;
 // ReSharper disable InconsistentNaming
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     public class ResizeTests
     {
         private const PixelTypes CommonNonDefaultPixelTypes =

tests/ImageSharp.Tests/Processing/Processors/Transforms/RotateFlipTests.cs

@@ -1,14 +1,13 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
-
+using SixLabors.ImageSharp.Processing;
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
-    using SixLabors.ImageSharp.Processing;
-
+    [Trait("Category", "Processors")]
     public class RotateFlipTests
     {
         public static readonly string[] FlipFiles = { TestImages.Bmp.F };
@@ -36,4 +35,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
             }
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Transforms/RotateTests.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
@@ -7,6 +7,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Transforms")]
     public class RotateTests
     {
@@ -43,4 +44,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
             provider.RunValidatingProcessorTest(ctx => ctx.Rotate(value), value, appendPixelTypeToFileName: false);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Transforms/SkewTests.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Apache License, Version 2.0.
 
 using SixLabors.ImageSharp.PixelFormats;
@@ -10,6 +10,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Transforms")]
     public class SkewTests
     {
@@ -64,4 +65,4 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
                 appendPixelTypeToFileName: false);
         }
     }
-}
+}

tests/ImageSharp.Tests/Processing/Processors/Transforms/SwizzleTests.cs

@@ -10,6 +10,7 @@ using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [Trait("Category", "Processors")]
     [GroupOutput("Transforms")]
     public class SwizzleTests
     {