diff --git a/src/Avalonia.Visuals/Animation/Animators/ColorAnimator.cs b/src/Avalonia.Visuals/Animation/Animators/ColorAnimator.cs
index a6fadeb7ad..6d1f6c39bd 100644
--- a/src/Avalonia.Visuals/Animation/Animators/ColorAnimator.cs
+++ b/src/Avalonia.Visuals/Animation/Animators/ColorAnimator.cs
@@ -32,6 +32,7 @@ namespace Avalonia.Animation.Animators
 
         public override Color Interpolate(double progress, Color oldValue, Color newValue)
         {
+            // normalize sRGB values.
             var oldA = oldValue.A / 255d;
             var oldR = oldValue.R / 255d;
             var oldG = oldValue.G / 255d;
diff --git a/src/Avalonia.Visuals/Animation/Animators/SolidColorBrushAnimator.cs b/src/Avalonia.Visuals/Animation/Animators/SolidColorBrushAnimator.cs
index c3de578959..ec02772dbc 100644
--- a/src/Avalonia.Visuals/Animation/Animators/SolidColorBrushAnimator.cs
+++ b/src/Avalonia.Visuals/Animation/Animators/SolidColorBrushAnimator.cs
@@ -27,8 +27,6 @@ namespace Avalonia.Animation.Animators
 
         public override IDisposable Apply(Animation animation, Animatable control, IClock clock, IObservable<bool> match, Action onComplete)
         {
-            var ctrl = (Visual)control;
-
             foreach (var keyframe in this)
             {
                 if (keyframe.Value as ISolidColorBrush == null)