diff --git a/runescape-client/src/main/java/Decimator.java b/runescape-client/src/main/java/Decimator.java
index 47aadf498d..229c6bbeb6 100644
--- a/runescape-client/src/main/java/Decimator.java
+++ b/runescape-client/src/main/java/Decimator.java
@@ -212,10 +212,10 @@ public class Decimator {
             ViewportMouse.field951 = (var16 + var10) / 2;
             ViewportMouse.field952 = (var13 + var12) / 2;
             ViewportMouse.field953 = (var17 - var9) / 2;
-            class311.field1156 = (var16 - var10) / 2;
+            DefaultsGroup.field1156 = (var16 - var10) / 2;
             Skeleton.field874 = (var13 - var12) / 2;
             GraphicsObject.field377 = Math.abs(ViewportMouse.field953);
-            ViewportMouse.field954 = Math.abs(class311.field1156);
+            ViewportMouse.field954 = Math.abs(DefaultsGroup.field1156);
             class248.field1142 = Math.abs(Skeleton.field874);
          }
 
@@ -228,7 +228,7 @@ public class Decimator {
          var9 = AccessFile.field7 - var5;
          var10 = ViewportMouse.field951 - var6;
          var11 = ViewportMouse.field952 - var7;
-         return Math.abs(var9) > var8 + GraphicsObject.field377 ? false : (Math.abs(var10) > var12 + ViewportMouse.field954 ? false : (Math.abs(var11) > var13 + class248.field1142 ? false : (Math.abs(var11 * class311.field1156 - var10 * Skeleton.field874) > var13 * ViewportMouse.field954 + var12 * class248.field1142 ? false : (Math.abs(var9 * Skeleton.field874 - var11 * ViewportMouse.field953) > var8 * class248.field1142 + var13 * GraphicsObject.field377 ? false : Math.abs(var10 * ViewportMouse.field953 - var9 * class311.field1156) <= var8 * ViewportMouse.field954 + var12 * GraphicsObject.field377))));
+         return Math.abs(var9) > var8 + GraphicsObject.field377 ? false : (Math.abs(var10) > var12 + ViewportMouse.field954 ? false : (Math.abs(var11) > var13 + class248.field1142 ? false : (Math.abs(var11 * DefaultsGroup.field1156 - var10 * Skeleton.field874) > var13 * ViewportMouse.field954 + var12 * class248.field1142 ? false : (Math.abs(var9 * Skeleton.field874 - var11 * ViewportMouse.field953) > var8 * class248.field1142 + var13 * GraphicsObject.field377 ? false : Math.abs(var10 * ViewportMouse.field953 - var9 * DefaultsGroup.field1156) <= var8 * ViewportMouse.field954 + var12 * GraphicsObject.field377))));
       }
    }
 
diff --git a/runescape-client/src/main/java/class311.java b/runescape-client/src/main/java/DefaultsGroup.java
similarity index 70%
rename from runescape-client/src/main/java/class311.java
rename to runescape-client/src/main/java/DefaultsGroup.java
index df7d2a1fa4..e02abf6d73 100644
--- a/runescape-client/src/main/java/class311.java
+++ b/runescape-client/src/main/java/DefaultsGroup.java
@@ -1,14 +1,18 @@
+import net.runelite.mapping.Export;
+import net.runelite.mapping.Implements;
 import net.runelite.mapping.ObfuscatedGetter;
 import net.runelite.mapping.ObfuscatedName;
 import net.runelite.mapping.ObfuscatedSignature;
 
 @ObfuscatedName("ka")
-public class class311 {
+@Implements("DefaultsGroup")
+public class DefaultsGroup
+{
    @ObfuscatedName("m")
    @ObfuscatedSignature(
       signature = "Lka;"
    )
-   static final class311 field3810;
+   static final DefaultsGroup field3810;
    @ObfuscatedName("e")
    @ObfuscatedGetter(
       intValue = -2077113503
@@ -18,10 +22,11 @@ public class class311 {
    @ObfuscatedGetter(
       intValue = -800980069
    )
-   final int field3809;
+   @Export("group")
+   final int group;
 
-   class311(int var1) {
-      this.field3809 = var1;
+   DefaultsGroup(int var1) {
+      this.group = var1;
    }
 
    @ObfuscatedName("m")
@@ -34,6 +39,6 @@ public class class311 {
    }
 
    static {
-      field3810 = new class311(3);
+      field3810 = new DefaultsGroup(3);
    }
 }
diff --git a/runescape-client/src/main/java/SpriteIds.java b/runescape-client/src/main/java/SpriteIds.java
index d1580be415..62d6048213 100644
--- a/runescape-client/src/main/java/SpriteIds.java
+++ b/runescape-client/src/main/java/SpriteIds.java
@@ -93,7 +93,7 @@ public class SpriteIds {
    )
    @Export("read")
    public void read(AbstractArchive var1) {
-      byte[] var2 = var1.takeFileFlat(class311.field3810.field3809);
+      byte[] var2 = var1.takeFileFlat(DefaultsGroup.field3810.group);
       Buffer var3 = new Buffer(var2);
 
       while (true) {
diff --git a/runescape-client/src/main/java/StructDefinition.java b/runescape-client/src/main/java/StructDefinition.java
index 0f8a462be8..b76149f043 100644
--- a/runescape-client/src/main/java/StructDefinition.java
+++ b/runescape-client/src/main/java/StructDefinition.java
@@ -261,7 +261,7 @@ public class StructDefinition extends DualNode {
             return 1;
          } else if (var0 == 1125) {
             var5 = Interpreter.Interpreter_intStack[--RouteStrategy.Interpreter_intStackSize];
-            RectangleMode var7 = (RectangleMode)ScriptFrame.findEnumerated(class311.method5822(), var5);
+            RectangleMode var7 = (RectangleMode)ScriptFrame.findEnumerated(DefaultsGroup.method5822(), var5);
             if (var7 != null) {
                var4.rectangleMode = var7;
                class22.method295(var4);