Update materials of KillcheckerVisualizer

BauSystem_Main/src/de/steamwar/bausystem/features/killchecker/KillcheckerVisualizer.java

@@ -34,8 +34,6 @@ import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.boss.BarColor;
-import org.bukkit.boss.BarStyle;
-import org.bukkit.boss.BossBar;
 import org.bukkit.entity.Player;
 
 import java.util.HashMap;
@@ -45,7 +43,22 @@ import java.util.Set;
 
 public class KillcheckerVisualizer {
 
-    private static final Material[] MATERIALS = new Material[] {Material.YELLOW_STAINED_GLASS, Material.ORANGE_STAINED_GLASS, Material.RED_STAINED_GLASS, Material.PURPLE_STAINED_GLASS, Material.BLACK_STAINED_GLASS};
+    private static final Material[] MATERIALS = new Material[]{
+            Material.LIME_STAINED_GLASS,
+            Material.LIME_CONCRETE,
+            Material.GREEN_STAINED_GLASS,
+            Material.GREEN_CONCRETE,
+            Material.YELLOW_STAINED_GLASS,
+            Material.YELLOW_CONCRETE,
+            Material.ORANGE_STAINED_GLASS,
+            Material.ORANGE_CONCRETE,
+            Material.RED_STAINED_GLASS,
+            Material.RED_CONCRETE,
+            Material.PURPLE_STAINED_GLASS,
+            Material.PURPLE_CONCRETE,
+            Material.BLACK_STAINED_GLASS,
+            Material.BLACK_CONCRETE,
+    };
     private static final World WORLD = Bukkit.getWorlds().get(0);
     
     private static final double SURROUND = 4.5;