Fix several issues with indicators

- Fix issue with indicators showing up multiple times
- Fix issue with disabling skill boosts not removing indicators

runelite-client/src/main/java/net/runelite/client/plugins/boosts/BoostIndicator.java

@@ -26,6 +26,7 @@ package net.runelite.client.plugins.boosts;
 
 import java.awt.Color;
 import java.awt.image.BufferedImage;
+import lombok.Getter;
 import net.runelite.api.Client;
 import net.runelite.api.Skill;
 import net.runelite.client.ui.overlay.infobox.InfoBox;
@@ -34,6 +35,8 @@ public class BoostIndicator extends InfoBox
 {
 	private final BoostsConfig config;
 	private final Client client;
+
+	@Getter
 	private final Skill skill;
 
 	public BoostIndicator(Skill skill, BufferedImage image, Client client, BoostsConfig config)

runelite-client/src/main/java/net/runelite/client/plugins/boosts/BoostsOverlay.java

@@ -84,12 +84,13 @@ class BoostsOverlay extends Overlay
 			int boosted = client.getBoostedSkillLevel(skill),
 				base = client.getRealSkillLevel(skill);
 
+			BoostIndicator indicator = indicators[skill.ordinal()];
+
 			if (boosted == base)
 			{
-				if (indicators[skill.ordinal()] != null)
+				if (indicator != null && infoBoxManager.getInfoBoxes().contains(indicator))
 				{
-					infoBoxManager.removeInfoBox(indicators[skill.ordinal()]);
-					indicators[skill.ordinal()] = null;
+					infoBoxManager.removeInfoBox(indicator);
 				}
 
 				continue;
@@ -97,15 +98,24 @@ class BoostsOverlay extends Overlay
 
 			if (config.displayIndicators())
 			{
-				if (indicators[skill.ordinal()] == null)
+				if (indicator == null)
 				{
-					BoostIndicator indicator = new BoostIndicator(skill, iconManager.getSkillImage(skill), client, config);
+					indicator = new BoostIndicator(skill, iconManager.getSkillImage(skill), client, config);
 					indicators[skill.ordinal()] = indicator;
+				}
+
+				if (!infoBoxManager.getInfoBoxes().contains(indicator))
+				{
 					infoBoxManager.addInfoBox(indicator);
 				}
 			}
 			else
 			{
+				if (indicator != null && infoBoxManager.getInfoBoxes().contains(indicator))
+				{
+					infoBoxManager.removeInfoBox(indicator);
+				}
+
 				String str;
 				Color strColor = Color.WHITE;
 				if (!config.useRelativeBoost())

runelite-client/src/main/java/net/runelite/client/plugins/boosts/BoostsPlugin.java

@@ -28,6 +28,7 @@ import com.google.common.collect.ObjectArrays;
 import com.google.common.eventbus.Subscribe;
 import com.google.inject.Binder;
 import com.google.inject.Provides;
+import java.util.Arrays;
 import javax.inject.Inject;
 import lombok.Getter;
 import net.runelite.api.Skill;
@@ -93,35 +94,25 @@ public class BoostsPlugin extends Plugin
 		}
 	}
 
+	@Override
+	protected void shutDown() throws Exception
+	{
+		infoBoxManager.removeIf(t -> t instanceof BoostIndicator);
+	}
+
 	@Subscribe
 	public void onConfigChanged(ConfigChanged event)
 	{
 		if (!config.enabled())
 		{
+			infoBoxManager.removeIf(t -> t instanceof BoostIndicator);
 			return;
 		}
 
 		updateShownSkills(config.enableSkill());
 
-		if (event.getKey().equals("displayIndicators"))
-		{
-			for (BoostIndicator indicator : boostsOverlay.getIndicators())
-			{
-				if (indicator == null)
-				{
-					continue;
-				}
-
-				if (config.displayIndicators())
-				{
-					infoBoxManager.addInfoBox(indicator);
-				}
-				else
-				{
-					infoBoxManager.removeInfoBox(indicator);
-				}
-			}
-		}
+		infoBoxManager.removeIf(t -> t instanceof BoostIndicator
+			&& !Arrays.asList(shownSkills).contains(((BoostIndicator) t).getSkill()));
 	}
 
 	private void updateShownSkills(boolean showSkillingSkills)