diff --git a/Source/Engine/Core/Math/Color.cs b/Source/Engine/Core/Math/Color.cs
index f11ba07ec..711ffb7d9 100644
--- a/Source/Engine/Core/Math/Color.cs
+++ b/Source/Engine/Core/Math/Color.cs
@@ -85,7 +85,7 @@ namespace FlaxEngine
         /// <summary>
         ///  Gets the brightness of the color
         /// </summary>
-        public float Luminance => R * 0.299f + G * 0.587f + B * 0.114f;
+        public float Brightness => R * 0.299f + G * 0.587f + B * 0.114f;
 
         /// <summary>
         /// Returns the minimum color component value: Min(r,g,b).
diff --git a/Source/Engine/UI/GUI/Common/Dropdown.cs b/Source/Engine/UI/GUI/Common/Dropdown.cs
index 9efad789e..6488bb14a 100644
--- a/Source/Engine/UI/GUI/Common/Dropdown.cs
+++ b/Source/Engine/UI/GUI/Common/Dropdown.cs
@@ -595,7 +595,7 @@ namespace FlaxEngine.GUI
                 Size = new Float2(size.X - margin, size.Y),
                 Font = Font,
                 TextColor = TextColor * 0.9f,
-                TextColorHighlighted = TextColorHighlighted.Luminance < 0.05f ? Color.Lerp(TextColorHighlighted, Color.White, 0.3f) : TextColorHighlighted,
+                TextColorHighlighted = TextColorHighlighted.Brightness < 0.05f ? Color.Lerp(TextColorHighlighted, Color.White, 0.3f) : TextColorHighlighted,
                 HorizontalAlignment = HorizontalAlignment,
                 VerticalAlignment = VerticalAlignment,
                 Text = _items[i],