Add Hide Failed Decorations Option

UI/Window/RenderConfigWindow.cs

@@ -142,6 +142,7 @@ internal static class RenderConfigWindow
     private static O5Toggle? _highResBloomCorrectionToggle;
     private static O5Toggle? _fixCustomFrameRateToggle;
     private static O5Toggle? _disableTileCullingToggle;
+    private static O5Toggle? _hideFailedDecorationsToggle;
 
     // Planet color overrides: the toggle enables the override, the picker holds the color. A disabled toggle stores
     // null in AdvancedConfig (no override is applied by PersistencePatch) and blocks the picker.
@@ -824,6 +825,22 @@ internal static class RenderConfigWindow
             },
             generateLabel: false
         );
+
+        // Hide Failed Decorations (AdvancedConfig.HideFailedDecorations): hides placeholder tree decorations when decoration images fail to load
+        _hideFailedDecorationsToggle = CreateToggleField(
+            ctx, CreateFieldSlot(advRight),
+            labelKey: "",
+            defaultValue: false,
+            value: config.AdvancedConfig.HideFailedDecorations,
+            toggleTextKey: "ui.render_config.hide_failed_decorations",
+            id: "toggle_hide_failed_decorations",
+            onChanged: val =>
+            {
+                config.AdvancedConfig.HideFailedDecorations = val;
+                MarkConfigModified();
+            },
+            generateLabel: false
+        );
         
         // 7-1. Planet Color Settings (Optional).
         // For each planet: the toggle turns the override on/off (off stores null and blocks/collapses the picker);
@@ -1036,6 +1053,7 @@ internal static class RenderConfigWindow
         _highResBloomCorrectionToggle?.Set(config.AdvancedConfig.HighResBloomCorrection, false);
         _fixCustomFrameRateToggle?.Set(config.AdvancedConfig.FixCustomFrameRate, false);
         _disableTileCullingToggle?.Set(config.AdvancedConfig.DisableTileCulling, false);
+        _hideFailedDecorationsToggle?.Set(config.AdvancedConfig.HideFailedDecorations, false);
 
         // Planet colors: toggle on when an override is stored; the picker shows the stored color or the default and is
         // blocked without an override
@@ -1220,6 +1238,7 @@ internal static class RenderConfigWindow
         if (_highResBloomCorrectionToggle != null) target.AdvancedConfig.HighResBloomCorrection = _highResBloomCorrectionToggle.Value;
         if (_fixCustomFrameRateToggle != null) target.AdvancedConfig.FixCustomFrameRate = _fixCustomFrameRateToggle.Value;
         if (_disableTileCullingToggle != null) target.AdvancedConfig.DisableTileCulling = _disableTileCullingToggle.Value;
+        if (_hideFailedDecorationsToggle != null) target.AdvancedConfig.HideFailedDecorations = _hideFailedDecorationsToggle.Value;
 
         // Planet Colors
         target.AdvancedConfig.firePlanetColor = (_firePlanetToggle?.Value == true && _firePlanetPicker != null)