diff --git a/osu.Game/Graphics/Backgrounds/Triangles.cs b/osu.Game/Graphics/Backgrounds/Triangles.cs
index af492bacc9..0eb5e90d3e 100644
--- a/osu.Game/Graphics/Backgrounds/Triangles.cs
+++ b/osu.Game/Graphics/Backgrounds/Triangles.cs
@@ -176,8 +176,7 @@ namespace osu.Game.Graphics.Backgrounds
             TriangleParticle particle = CreateTriangle();
 
             particle.Position = new Vector2(RNG.NextSingle(), randomY ? RNG.NextSingle() : 1);
-            particle.ColourShade = RNG.NextSingle();
-            particle.Colour = CreateTriangleShade(particle.ColourShade);
+            particle.UpdateColour(colourDark, colourLight);
 
             return particle;
         }
@@ -199,18 +198,12 @@ namespace osu.Game.Graphics.Backgrounds
             return new TriangleParticle { Scale = scale };
         }
 
-        /// <summary>
-        /// Creates a shade of colour for the triangles.
-        /// </summary>
-        /// <returns>The colour.</returns>
-        protected virtual Color4 CreateTriangleShade(float shade) => Interpolation.ValueAt(shade, colourDark, colourLight, 0, 1);
-
         private void updateColours()
         {
             for (int i = 0; i < parts.Count; i++)
             {
                 TriangleParticle newParticle = parts[i];
-                newParticle.Colour = CreateTriangleShade(newParticle.ColourShade);
+                newParticle.UpdateColour(colourDark, colourLight);
                 parts[i] = newParticle;
             }
         }
@@ -293,7 +286,7 @@ namespace osu.Game.Graphics.Backgrounds
             }
         }
 
-        protected struct TriangleParticle : IComparable<TriangleParticle>
+        protected class TriangleParticle : IComparable<TriangleParticle>
         {
             /// <summary>
             /// The position of the top vertex of the triangle.
@@ -304,7 +297,7 @@ namespace osu.Game.Graphics.Backgrounds
             /// The colour shade of the triangle.
             /// This is needed for colour recalculation of visible triangles when <see cref="ColourDark"/> or <see cref="ColourLight"/> is changed.
             /// </summary>
-            public float ColourShade;
+            private readonly float colourShade = RNG.NextSingle();
 
             /// <summary>
             /// The colour of the triangle.
@@ -316,6 +309,11 @@ namespace osu.Game.Graphics.Backgrounds
             /// </summary>
             public float Scale;
 
+            public void UpdateColour(Color4 colourDark, Color4 colourLight)
+            {
+                Colour = Interpolation.ValueAt(colourShade, colourDark, colourLight, 0, 1);
+            }
+
             /// <summary>
             /// Compares two <see cref="TriangleParticle"/>s. This is a reverse comparer because when the
             /// triangles are added to the particles list, they should be drawn from largest to smallest