Fixed issues loading spellbook chapters

src/main/java/com/minelittlepony/unicopia/client/gui/spellbook/ClientChapters.java

@@ -1,6 +1,7 @@
 package com.minelittlepony.unicopia.client.gui.spellbook;
 
 import java.util.*;
+
 import com.minelittlepony.unicopia.client.gui.spellbook.SpellbookChapterList.*;
 import com.minelittlepony.unicopia.client.gui.spellbook.element.DynamicContent;
 import com.minelittlepony.unicopia.container.spellbook.SpellbookChapter;

src/main/java/com/minelittlepony/unicopia/client/gui/spellbook/element/DynamicContent.java

@@ -91,7 +91,7 @@ public class DynamicContent implements Content {
         rightPanel.init(screen, pageIndex + 1);
     }
 
-    class Page implements Drawable {
+    public class Page implements Drawable {
         private final Text title;
         private final int level;
         private final int color;
@@ -197,5 +197,10 @@ public class DynamicContent implements Content {
 
             matrices.pop();
         }
+
+        @Override
+        public String toString() {
+            return "DynamicContents$Page[title=" + title + ",elements=" + elements + "]";
+        }
     }
 }

src/main/java/com/minelittlepony/unicopia/client/gui/spellbook/element/PageElement.java

@@ -56,7 +56,7 @@ public interface PageElement extends Drawable {
                 byte t = b.readByte();
                 return switch (t) {
                     case 1 -> formatLine(capture(b.readIdentifier(), id -> Registries.ITEM.get(id).getDefaultStack().getName()), "item", count);
-                    case 2 -> formatLine(Trait.PACKET_CODEC.decode(b)::getShortName, "trait", count);
+                    case 2 -> formatLine(Trait.fromId(b.readIdentifier()).get()::getShortName, "trait", count);
                     case 3 -> Suppliers.ofInstance(TextCodecs.PACKET_CODEC.decode(b));
                     case 4 -> formatLine(SpellType.getKey(b.readIdentifier())::getName, "spell", count);
                     default -> throw new IllegalArgumentException("Unexpected value: " + t);

src/main/java/com/minelittlepony/unicopia/container/spellbook/Chapter.java

@@ -20,7 +20,7 @@ public record Chapter (
             TabSide.CODEC.fieldOf("side").forGetter(Chapter::side),
             Codec.INT.fieldOf("y_position").forGetter(Chapter::tabY),
             Codec.INT.optionalFieldOf("color", 0).forGetter(Chapter::color),
-            Contents.CODEC.fieldOf("contents").forGetter(Chapter::contents)
+            Contents.CODEC.fieldOf("content").forGetter(Chapter::contents)
     ).apply(instance, Chapter::new));
 
     record Contents(List<Page> pages) {
@@ -35,10 +35,10 @@ public record Chapter (
                 List<ChapterPageElement> elements
             ) {
             public static final Codec<Page> CODEC = RecordCodecBuilder.create(instance -> instance.group(
-                    TextCodecs.CODEC.fieldOf("title").forGetter(Page::title),
-                    Codec.INT.fieldOf("level").forGetter(Page::level),
-                    TextColor.CODEC.fieldOf("color").xmap(TextColor::getRgb, TextColor::fromRgb).forGetter(Page::level),
-                    ChapterPageElement.CODEC.listOf().fieldOf("elements").forGetter(Page::elements)
+                    TextCodecs.CODEC.optionalFieldOf("title", Text.empty()).forGetter(Page::title),
+                    Codec.INT.optionalFieldOf("level", 0).forGetter(Page::level),
+                    TextColor.CODEC.xmap(TextColor::getRgb, TextColor::fromRgb).optionalFieldOf("color", 0).forGetter(Page::color),
+                    ChapterPageElement.CODEC.listOf().optionalFieldOf("elements", List.of()).forGetter(Page::elements)
             ).apply(instance, Page::new));
 
             public void toBuffer(RegistryByteBuf buffer) {

src/main/java/com/minelittlepony/unicopia/container/spellbook/SpellbookChapterLoader.java

@@ -61,6 +61,7 @@ public class SpellbookChapterLoader extends JsonDataLoader implements Identifiab
         try {
             chapters = data.entrySet().stream().map(entry -> {
                 return Chapter.CODEC.decode(JsonOps.INSTANCE, entry.getValue())
+                    .ifError(error -> LOGGER.error("Could not load spellbook chapters due to exception {}", error))
                     .result()
                     .map(Pair::getFirst)
                     .map(chapter -> new IdentifiableChapter(entry.getKey(), chapter))

src/main/resources/data/unicopia/spellbook/chapters/air_magic.json

@@ -1,5 +1,5 @@
 {
-  "side": "RIGHT",
+  "side": "right",
   "y_position": 4,
   "color": 0,
   "content": {

src/main/resources/data/unicopia/spellbook/chapters/crystal_heart.json

@@ -1,5 +1,5 @@
 {
-  "side": "RIGHT",
+  "side": "right",
   "y_position": 7,
   "color": 0,
   "content": {

src/main/resources/data/unicopia/spellbook/chapters/dark_magic.json

@@ -1,5 +1,5 @@
 {
-  "side": "RIGHT",
+  "side": "right",
   "y_position": 5,
   "color": 0,
   "content": {

src/main/resources/data/unicopia/spellbook/chapters/fire_magic.json

@@ -1,5 +1,5 @@
 {
-  "side": "RIGHT",
+  "side": "right",
   "y_position": 2,
   "color": 0,
   "content": {

src/main/resources/data/unicopia/spellbook/chapters/ice_magic.json

@@ -1,5 +1,5 @@
 {
-  "side": "RIGHT",
+  "side": "right",
   "y_position": 3,
   "color": 0,
   "content": {

src/main/resources/data/unicopia/spellbook/chapters/introduction.json

@@ -1,5 +1,5 @@
 {
-  "side": "RIGHT",
+  "side": "right",
   "y_position": 0,
   "color": 0,
   "content": {

src/main/resources/data/unicopia/spellbook/chapters/the_otherworldly.json

@@ -1,5 +1,5 @@
 {
-  "side": "RIGHT",
+  "side": "right",
   "y_position": 6,
   "color": 0,
   "content": {