diff --git a/Penumbra/Api/IPenumbraApi.cs b/Penumbra/Api/IPenumbraApi.cs
index 37265ce9..dd4b1562 100644
--- a/Penumbra/Api/IPenumbraApi.cs
+++ b/Penumbra/Api/IPenumbraApi.cs
@@ -104,12 +104,12 @@ public interface IPenumbraApi : IPenumbraApiBase
 
     // Obtain the potential settings of a mod specified by its directory name first or mod name second.
     // Returns null if the mod could not be found.
-    public Dictionary< string, (string[], SelectType) >? GetAvailableModSettings( string modDirectory, string modName );
+    public IDictionary< string, (IList<string>, SelectType) >? GetAvailableModSettings( string modDirectory, string modName );
 
     // Obtain the enabled state, the priority, the settings of a mod specified by its directory name first or mod name second,
     // and whether these settings are inherited, or null if the collection does not set them at all.
     // If allowInheritance is false, only the collection itself will be checked.
-    public (PenumbraApiEc, (bool, int, Dictionary< string, string[] >, bool)?) GetCurrentModSettings( string collectionName,
+    public (PenumbraApiEc, (bool, int, IDictionary< string, IList<string> >, bool)?) GetCurrentModSettings( string collectionName,
         string modDirectory, string modName, bool allowInheritance );
 
     // Try to set the inheritance state in the given collection of a mod specified by its directory name first or mod name second.
@@ -131,7 +131,7 @@ public interface IPenumbraApi : IPenumbraApiBase
     public PenumbraApiEc TrySetModSetting( string collectionName, string modDirectory, string modName, string optionGroupName, string option );
 
     public PenumbraApiEc TrySetModSetting( string collectionName, string modDirectory, string modName, string optionGroupName,
-        string[] options );
+        IReadOnlyList<string> options );
 
 
     // Create a temporary collection without actual settings but with a cache.
diff --git a/Penumbra/Api/PenumbraApi.cs b/Penumbra/Api/PenumbraApi.cs
index a81ab204..4cce0f2c 100644
--- a/Penumbra/Api/PenumbraApi.cs
+++ b/Penumbra/Api/PenumbraApi.cs
@@ -210,10 +210,10 @@ public class PenumbraApi : IDisposable, IPenumbraApi
         return Penumbra.ModManager.Select( m => ( m.ModPath.Name, m.Name.Text ) ).ToArray();
     }
 
-    public Dictionary< string, (string[], SelectType) >? GetAvailableModSettings( string modDirectory, string modName )
+    public IDictionary< string, (IList<string>, SelectType) >? GetAvailableModSettings( string modDirectory, string modName )
         => throw new NotImplementedException();
 
-    public (PenumbraApiEc, (bool, int, Dictionary< string, string[] >, bool)?) GetCurrentModSettings( string collectionName, string modDirectory, string modName,
+    public (PenumbraApiEc, (bool, int, IDictionary< string, IList<string> >, bool)?) GetCurrentModSettings( string collectionName, string modDirectory, string modName,
         bool allowInheritance )
         => throw new NotImplementedException();
 
@@ -229,7 +229,7 @@ public class PenumbraApi : IDisposable, IPenumbraApi
     public PenumbraApiEc TrySetModSetting( string collectionName, string modDirectory, string modName, string optionGroupName, string option )
         => throw new NotImplementedException();
 
-    public PenumbraApiEc TrySetModSetting( string collectionName, string modDirectory, string modName, string optionGroupName, string[] options )
+    public PenumbraApiEc TrySetModSetting( string collectionName, string modDirectory, string modName, string optionGroupName, IReadOnlyList<string> options )
         => throw new NotImplementedException();
 
     public PenumbraApiEc CreateTemporaryCollection( string collectionName, string? character, bool forceOverwriteCharacter )