Broken UI system

Runtime/PSXUIBox.cs

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+using UnityEngine;
+
+namespace SplashEdit.RuntimeCode
+{
+    /// <summary>
+    /// A solid-color rectangle UI element for PSX export.
+    /// Rendered as a FastFill primitive on PS1 hardware.
+    /// Attach to a child of a PSXCanvas GameObject.
+    /// </summary>
+    [RequireComponent(typeof(RectTransform))]
+    [DisallowMultipleComponent]
+    [AddComponentMenu("PSX/UI/PSX UI Box")]
+    public class PSXUIBox : MonoBehaviour
+    {
+        [Tooltip("Name used to reference this element from Lua (max 24 chars).")]
+        [SerializeField] private string elementName = "box";
+
+        [Tooltip("Fill color for the box.")]
+        [SerializeField] private Color boxColor = Color.black;
+
+        [Tooltip("Whether this element is visible when the scene first loads.")]
+        [SerializeField] private bool startVisible = true;
+
+        /// <summary>Element name for Lua access.</summary>
+        public string ElementName => elementName;
+
+        /// <summary>Box fill color (RGB, alpha ignored).</summary>
+        public Color BoxColor => boxColor;
+
+        /// <summary>Initial visibility flag.</summary>
+        public bool StartVisible => startVisible;
+    }
+}