Make all the HDSkins classes package private so it's clear they're not meant to be referenced anywhere else

src/main/java/com/minelittlepony/client/FabMod.java

@@ -4,7 +4,8 @@ import net.fabricmc.api.ClientModInitializer;
 import net.fabricmc.fabric.api.event.client.ClientTickCallback;
 import net.fabricmc.loader.api.FabricLoader;
 import net.minecraft.client.MinecraftClient;
-import com.minelittlepony.client.gui.hdskins.MineLPHDSkins;
+
+import com.minelittlepony.client.gui.hdskins.IndirectHDSkins;
 import com.minelittlepony.common.client.IModUtilities;
 
 import javax.annotation.Nullable;
@@ -21,7 +22,7 @@ public class FabMod implements ClientModInitializer, ClientTickCallback, IModUti
         ClientTickCallback.EVENT.register(this);
 
         if (FabricLoader.getInstance().isModLoaded("hdskins")) {
-            mlp = new MineLPHDSkins(this);
+            mlp = IndirectHDSkins.getConstructor().apply(this);
         } else {
             mlp = new MineLPClient(this);
         }

src/main/java/com/minelittlepony/client/gui/hdskins/ClientPonyConfigHDSkins.java

@@ -4,7 +4,7 @@ import com.minelittlepony.client.settings.ClientPonyConfig;
 import com.minelittlepony.hdskins.HDSkins;
 import com.minelittlepony.settings.PonyLevel;
 
-public class ClientPonyConfigHDSkins extends ClientPonyConfig {
+class ClientPonyConfigHDSkins extends ClientPonyConfig {
 
     @Override
     public void setPonyLevel(PonyLevel ponylevel) {
@@ -15,5 +15,4 @@ public class ClientPonyConfigHDSkins extends ClientPonyConfig {
 
         super.setPonyLevel(ponylevel);
     }
-
 }

src/main/java/com/minelittlepony/client/gui/hdskins/DummyPony.java

@@ -8,7 +8,7 @@ import com.mojang.authlib.minecraft.MinecraftProfileTexture.Type;
 /**
  * Dummy model used for the skin uploading screen.
  */
-public class DummyPony extends DummyPlayer {
+class DummyPony extends DummyPlayer {
 
     public boolean wet = false;
 

src/main/java/com/minelittlepony/client/gui/hdskins/GuiSkinsMineLP.java

@@ -20,7 +20,7 @@ import java.util.List;
 /**
  * Skin uploading GUI. Usually displayed over the main menu.
  */
-public class GuiSkinsMineLP extends GuiSkins {
+class GuiSkinsMineLP extends GuiSkins {
 
     private IPonyManager ponyManager = MineLittlePony.getInstance().getManager();
 

src/main/java/com/minelittlepony/client/gui/hdskins/IndirectHDSkins.java

@@ -0,0 +1,12 @@
+package com.minelittlepony.client.gui.hdskins;
+
+import com.minelittlepony.client.MineLPClient;
+import com.minelittlepony.common.client.IModUtilities;
+
+import java.util.function.Function;
+
+public final class IndirectHDSkins {
+    public static Function<IModUtilities, MineLPClient> getConstructor() {
+        return MineLPHDSkins::new;
+    }
+}

src/main/java/com/minelittlepony/client/gui/hdskins/MineLPHDSkins.java

@@ -22,7 +22,7 @@ import java.util.Map;
 /**
  * All the interactions with HD Skins.
  */
-public class MineLPHDSkins extends MineLPClient implements ISkinCacheClearListener {
+class MineLPHDSkins extends MineLPClient implements ISkinCacheClearListener {
     private static final String MINELP_VALHALLA_SERVER = "http://skins.minelittlepony-mod.com";
 
     private static final String MINELP_LEGACY_SERVER = "http://minelpskins.voxelmodpack.com";

src/main/java/com/minelittlepony/client/gui/hdskins/PonyPreview.java

@@ -10,7 +10,7 @@ import com.minelittlepony.pony.IPony;
 import com.minelittlepony.pony.meta.Race;
 import com.mojang.authlib.minecraft.MinecraftProfileTexture.Type;
 
-public class PonyPreview extends PlayerPreview {
+class PonyPreview extends PlayerPreview {
 
     public static final Identifier NO_SKIN_PONY = new Identifier("minelittlepony", "textures/mob/noskin.png");
     public static final Identifier NO_SKIN_SEAPONY = new Identifier("minelittlepony", "textures/mob/noskin_seapony.png");

src/main/java/com/minelittlepony/client/gui/hdskins/PonySkinParser.java

@@ -11,7 +11,7 @@ import net.minecraft.util.Identifier;
 
 import java.util.Map;
 
-public class PonySkinParser implements ISkinParser {
+class PonySkinParser implements ISkinParser {
 
     @Override
     public void parse(GameProfile profile, MinecraftProfileTexture.Type type, Identifier resource,

src/main/java/com/minelittlepony/client/gui/hdskins/RenderDummyPony.java

@@ -21,7 +21,7 @@ import net.minecraft.util.Identifier;
 /**
  * Renderer used for the dummy pony model when selecting a skin.
  */
-public class RenderDummyPony extends RenderDummyPlayer<DummyPony, ClientPonyModel<DummyPony>> implements IPonyRender<DummyPony, ClientPonyModel<DummyPony>> {
+class RenderDummyPony extends RenderDummyPlayer<DummyPony, ClientPonyModel<DummyPony>> implements IPonyRender<DummyPony, ClientPonyModel<DummyPony>> {
 
     protected final RenderPony<DummyPony, ClientPonyModel<DummyPony>> renderPony = new RenderPony<>(this);