diff --git a/src/main/java/carpet/CarpetSettings.java b/src/main/java/carpet/CarpetSettings.java
index 0af1cea0..73b88d03 100644
--- a/src/main/java/carpet/CarpetSettings.java
+++ b/src/main/java/carpet/CarpetSettings.java
@@ -453,6 +453,7 @@ public class CarpetSettings
                     "have when running commands with run()"
             },
             category = {SCARPET},
+            options = {"ops", "0", "1", "2", "3", "4"},
             validate = {Validator._COMMAND_LEVEL_VALIDATOR.class, ModulePermissionLevel.class}
     )
     public static String commandScriptACE = "ops";
@@ -484,6 +485,7 @@ public class CarpetSettings
                     "using <user>/<repo>/contents/<path...>"
             },
             category = SCARPET,
+            strict = false,
             validate= AppStoreManager.ScarpetAppStoreValidator.class
     )
     public static String scriptsAppStore = "gnembon/scarpet/contents/programs";
diff --git a/src/main/java/carpet/script/CarpetEventServer.java b/src/main/java/carpet/script/CarpetEventServer.java
index f4817972..fa80b5b7 100644
--- a/src/main/java/carpet/script/CarpetEventServer.java
+++ b/src/main/java/carpet/script/CarpetEventServer.java
@@ -991,6 +991,7 @@ public class CarpetEventServer
         public final String name;
 
         public final CallbackList handler;
+        @Deprecated
         public final boolean globalOnly;
         public final boolean isPublic; // public events can be targetted with __on_<event> defs
         public Event(String name, int reqArgs, boolean isGlobalOnly)
diff --git a/src/main/java/carpet/script/utils/BiomeInfo.java b/src/main/java/carpet/script/utils/BiomeInfo.java
index 4392da8b..13603ca2 100644
--- a/src/main/java/carpet/script/utils/BiomeInfo.java
+++ b/src/main/java/carpet/script/utils/BiomeInfo.java
@@ -21,20 +21,13 @@ import java.util.function.BiFunction;
 
 public class BiomeInfo
 {
-    // copy of from Biome.getDefaultFoliageColor
-    private static int getDefaultFoliageColor(Biome b) {
-        double d = MathHelper.clamp(b.getTemperature(), 0.0F, 1.0F);
-        double e = MathHelper.clamp(b.getDownfall(), 0.0F, 1.0F);
-        return FoliageColors.getColor(d, e);
-    }
-
     public final static Map<String, BiFunction<ServerWorld, Biome, Value>> biomeFeatures = new HashMap<String, BiFunction<ServerWorld, Biome, Value>>(){{
         put("top_material", (w, b) -> new BlockValue( b.getGenerationSettings().getSurfaceConfig().getTopMaterial(), null, null));
         put("under_material", (w, b) -> new BlockValue( b.getGenerationSettings().getSurfaceConfig().getUnderMaterial(), null, null));
         put("category", (w, b) -> StringValue.of(b.getCategory().getName()));
         put("temperature", (w, b) -> NumericValue.of(b.getTemperature()));
         put("fog_color", (w, b) -> ValueConversions.ofRGB(((BiomeEffectsInterface)b.getEffects()).getCMFogColor()));
-        put("foliage_color", (w, b) -> ValueConversions.ofRGB(((BiomeEffectsInterface)b.getEffects()).getCMFoliageColor().orElseGet(() -> getDefaultFoliageColor(b))));
+        put("foliage_color", (w, b) -> ValueConversions.ofRGB(((BiomeEffectsInterface)b.getEffects()).getCMFoliageColor().orElse(4764952))); // client Biome.getDefaultFoliageColor
         put("sky_color", (w, b) -> ValueConversions.ofRGB(((BiomeEffectsInterface)b.getEffects()).getCMSkyColor()));
         put("water_color", (w, b) -> ValueConversions.ofRGB(((BiomeEffectsInterface)b.getEffects()).getCMWaterColor()));
         put("water_fog_color", (w, b) -> ValueConversions.ofRGB(((BiomeEffectsInterface)b.getEffects()).getCMWaterFogColor()));
diff --git a/src/main/java/carpet/settings/Condition.java b/src/main/java/carpet/settings/Condition.java
new file mode 100644
index 00000000..198389fe
--- /dev/null
+++ b/src/main/java/carpet/settings/Condition.java
@@ -0,0 +1,5 @@
+package carpet.settings;
+
+public interface Condition {
+    boolean isTrue();
+}
diff --git a/src/main/java/carpet/settings/ParsedRule.java b/src/main/java/carpet/settings/ParsedRule.java
index ceec2686..7ec3bff6 100644
--- a/src/main/java/carpet/settings/ParsedRule.java
+++ b/src/main/java/carpet/settings/ParsedRule.java
@@ -163,7 +163,7 @@ public final class ParsedRule<T> implements Comparable<ParsedRule> {
                 {
                     if (source != null)
                     {
-                        Messenger.m(source, "r Wrong value for " + name + ": " + stringValue);
+                        validator.notifyFailure(source, this, stringValue);
                         if (validator.description() != null)
                             Messenger.m(source, "r " + validator.description());
                     }
diff --git a/src/main/java/carpet/settings/Rule.java b/src/main/java/carpet/settings/Rule.java
index 365d4cb3..1e638645 100644
--- a/src/main/java/carpet/settings/Rule.java
+++ b/src/main/java/carpet/settings/Rule.java
@@ -64,4 +64,9 @@ public @interface Rule
      * The class of the validator checked when the rule is changed.
      */
     Class<? extends Validator>[] validate() default {};
+
+    /**
+     * The class of the condition checked when the rule is parsed.
+     */
+    Class<? extends Condition>[] condition() default {};
 }
diff --git a/src/main/java/carpet/settings/SettingsManager.java b/src/main/java/carpet/settings/SettingsManager.java
index 9909ac55..b2fdd9e7 100644
--- a/src/main/java/carpet/settings/SettingsManager.java
+++ b/src/main/java/carpet/settings/SettingsManager.java
@@ -30,6 +30,7 @@ import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.IOException;
 import java.io.PrintStream;
+import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
 import java.nio.file.Files;
 import java.nio.file.NoSuchFileException;
@@ -138,11 +139,24 @@ public class SettingsManager
      */
     public void parseSettingsClass(Class settingsClass)
     {
-        for (Field f : settingsClass.getDeclaredFields())
+        rule: for (Field f : settingsClass.getDeclaredFields())
         {
             Rule rule = f.getAnnotation(Rule.class);
             if (rule == null) continue;
-            ParsedRule parsed = new ParsedRule(f, rule, this);
+            ParsedRule<?> parsed = new ParsedRule<>(f, rule, this);
+            for (Class<? extends Condition> condition : rule.condition()) {
+                try
+                {
+                    Constructor<?> constr = condition.getDeclaredConstructor();
+                    constr.setAccessible(true);
+                    if (!((Condition) constr.newInstance()).isTrue())
+                        continue rule;
+                }
+                catch (ReflectiveOperationException e)
+                {
+                    throw new RuntimeException(e);
+                }
+            }
             rules.put(parsed.name, parsed);
         }
     }
diff --git a/src/main/java/carpet/settings/Validator.java b/src/main/java/carpet/settings/Validator.java
index 3afa6dd4..951af824 100644
--- a/src/main/java/carpet/settings/Validator.java
+++ b/src/main/java/carpet/settings/Validator.java
@@ -16,6 +16,10 @@ public abstract class Validator<T>
      */
     public abstract T validate(ServerCommandSource source, ParsedRule<T> currentRule, T newValue, String string);
     public String description() {return null;}
+    public void notifyFailure(ServerCommandSource source, ParsedRule<T> currentRule, String providedValue)
+    {
+        Messenger.m(source, "r Wrong value for " + currentRule.name + ": " + providedValue);
+    }
 
     public static class _COMMAND<T> extends Validator<T>
     {