diff --git a/.editorconfig b/.editorconfig
index c0ea55f4c8..67c47000d3 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -191,6 +191,8 @@ csharp_style_prefer_index_operator = false:silent
 csharp_style_prefer_range_operator = false:silent
 csharp_style_prefer_switch_expression = false:none
 
+csharp_style_namespace_declarations = block_scoped:warning
+
 [*.{yaml,yml}]
 insert_final_newline = true
 indent_style = space
diff --git a/osu.Game/Rulesets/Objects/Types/IHasSliderVelocity.cs b/osu.Game/Rulesets/Objects/Types/IHasSliderVelocity.cs
index c0ac5036ee..80fd8dd8dc 100644
--- a/osu.Game/Rulesets/Objects/Types/IHasSliderVelocity.cs
+++ b/osu.Game/Rulesets/Objects/Types/IHasSliderVelocity.cs
@@ -3,17 +3,18 @@
 
 using osu.Framework.Bindables;
 
-namespace osu.Game.Rulesets.Objects.Types;
-
-/// <summary>
-/// A HitObject that has a slider velocity multiplier.
-/// </summary>
-public interface IHasSliderVelocity
+namespace osu.Game.Rulesets.Objects.Types
 {
     /// <summary>
-    /// The slider velocity multiplier.
+    /// A HitObject that has a slider velocity multiplier.
     /// </summary>
-    double SliderVelocity { get; set; }
+    public interface IHasSliderVelocity
+    {
+        /// <summary>
+        /// The slider velocity multiplier.
+        /// </summary>
+        double SliderVelocity { get; set; }
 
-    BindableNumber<double> SliderVelocityBindable { get; }
+        BindableNumber<double> SliderVelocityBindable { get; }
+    }
 }
diff --git a/osu.sln.DotSettings b/osu.sln.DotSettings
index 367dfccb71..d7486273fb 100644
--- a/osu.sln.DotSettings
+++ b/osu.sln.DotSettings
@@ -277,6 +277,7 @@
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/DEFAULT_INTERNAL_MODIFIER/@EntryValue">Explicit</s:String>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/LOCAL_FUNCTION_BODY/@EntryValue">ExpressionBody</s:String>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/METHOD_OR_OPERATOR_BODY/@EntryValue">BlockBody</s:String>
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/NAMESPACE_BODY/@EntryValue">BlockScoped</s:String>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/OBJECT_CREATION_WHEN_TYPE_EVIDENT/@EntryValue">ExplicitlyTyped</s:String>
 	<s:Boolean x:Key="/Default/CodeStyle/CodeFormatting/CSharpCodeStyle/USE_HEURISTICS_FOR_BODY_STYLE/@EntryValue">True</s:Boolean>
 	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/ACCESSOR_DECLARATION_BRACES/@EntryValue">NEXT_LINE</s:String>