Tweak tolerance for ARM64

Author: JimBobSquarePants

tests/ImageSharp.Drawing.Tests/Drawing/DrawingRobustnessTests.cs

@@ -160,10 +160,8 @@ public void LargeGeoJson_Mississippi_Lines(TestImageProvider<Rgba32> provider, i
             image.Mutate(c => c.DrawLine(Color.White, 1.0f, loop));
         }
 
-        // Very strict tolerance, since the image is sparse (relaxed on .NET Framework)
-        ImageComparer comparer = TestEnvironment.IsFramework
-            ? ImageComparer.TolerantPercentage(1e-3f)
-            : ImageComparer.TolerantPercentage(1e-7f);
+        // Strict comparer, because the image is sparse:
+        ImageComparer comparer = ImageComparer.TolerantPercentage(0.0001F);
 
         string details = $"PixelOffset({pixelOffset})";
         image.DebugSave(provider, details, appendPixelTypeToFileName: false, appendSourceFileOrDescription: false);

tests/ImageSharp.Drawing.Tests/Drawing/Text/DrawTextOnImageTests.cs

@@ -23,7 +23,7 @@ public class DrawTextOnImageTests
 
     private static readonly ImageComparer TextDrawingComparer = ImageComparer.TolerantPercentage(1e-2f);
 
-    private static readonly ImageComparer OutlinedTextDrawingComparer = ImageComparer.TolerantPercentage(1e-3f);
+    private static readonly ImageComparer OutlinedTextDrawingComparer = ImageComparer.TolerantPercentage(0.0069F);
 
     public DrawTextOnImageTests(ITestOutputHelper output)
         => this.Output = output;
@@ -278,7 +278,7 @@ public void FontShapesAreRenderedCorrectly_LargeText<TPixel>(
         }
 
         // Strict comparer, because the image is sparse:
-        var comparer = ImageComparer.TolerantPercentage(1e-6f);
+        var comparer = ImageComparer.TolerantPercentage(0.0001F);
 
         provider.VerifyOperation(
             comparer,