diff --git a/Client/src/main/kotlin/org/rs09/SlayerTracker.kt b/Client/src/main/kotlin/org/rs09/SlayerTracker.kt
index 48b160efa..b0f2154e4 100644
--- a/Client/src/main/kotlin/org/rs09/SlayerTracker.kt
+++ b/Client/src/main/kotlin/org/rs09/SlayerTracker.kt
@@ -13,7 +13,7 @@ object SlayerTracker {
     const val textX = 7
     const val textY = 50
     const val spriteY = 30
-    val boxColor = GameConfig.slayerTrackerColor.toInt(16)
+    val boxColor = GameConfig.slayerTrackerColor.toIntOrNull(16) ?: 6116423
 
     @JvmField
     var lastUpdate = 0L
diff --git a/Client/src/main/kotlin/org/rs09/client/config/GameConfig.kt b/Client/src/main/kotlin/org/rs09/client/config/GameConfig.kt
index fd9ca0fd0..971a87e32 100644
--- a/Client/src/main/kotlin/org/rs09/client/config/GameConfig.kt
+++ b/Client/src/main/kotlin/org/rs09/client/config/GameConfig.kt
@@ -50,20 +50,32 @@ class GameConfig {
         @JvmField
         var RCM_BG_COLOR = 6116423
 
-        @JvmField
+        @JvmStatic
         var RCM_BG_OPACITY  = 255
+            set(value) {
+                if(value > 255 || value < 0) field = 255
+                else field = value
+            }
 
         @JvmField
         var RCM_TITLE_COLOR = 0
 
-        @JvmField
+        @JvmStatic
         var RCM_TITLE_OPACITY = 255
+            set(value) {
+                if(value > 255 || value < 0) field = 255
+                else field = value
+            }
 
         @JvmField
         var RCM_BORDER_COLOR = 0
 
-        @JvmField
+        @JvmStatic
         var RCM_BORDER_OPACITY = 255
+            set(value) {
+                if(value > 255 || value < 0) field = 255
+                else field = value
+            }
 
         @JvmField
         var RCM_TITLE = "<col=0>Choose Option</col>"
@@ -131,8 +143,12 @@ class GameConfig {
         @JvmField
         var slayerTrackerColor = "#635a38"
 
-        @JvmField
+        @JvmStatic
         var slayerTrackerOpacity = 180
+        set(value) {
+            if(value > 255 || value < 0) field = 255
+            else field = value
+        }
 
         @JvmField
         var slayerTaskID = 0
@@ -179,7 +195,7 @@ class GameConfig {
                     //background
                     if(rcm.containsKey("background")){
                         val bg = rcm["background"] as JSONObject
-                        if(bg.containsKey("color")) RCM_BG_COLOR = bg["color"].toString().replace("#", "").toInt(16) //convert hex -> deci
+                        if(bg.containsKey("color")) RCM_BG_COLOR = bg["color"].toString().replace("#", "").toIntOrNull(16) ?: 6116423//convert hex -> deci
                         if(bg.containsKey("opacity")) RCM_BG_OPACITY = bg["opacity"].toString().toInt()
                     }
 
@@ -187,14 +203,14 @@ class GameConfig {
                     if(rcm.containsKey("title_bar")){
                         val tb = rcm["title_bar"] as JSONObject
                         if(tb.containsKey("font_color")) RCM_TITLE = RCM_TITLE.replace("0", tb["font_color"].toString().replace("#", ""))
-                        if(tb.containsKey("color")) RCM_TITLE_COLOR = tb["color"].toString().replace("#", "").toInt(16) //convert hex -> deci
+                        if(tb.containsKey("color")) RCM_TITLE_COLOR = tb["color"].toString().replace("#", "").toIntOrNull(16) ?: 6116423//convert hex -> deci
                         if(tb.containsKey("opacity")) RCM_TITLE_OPACITY = tb["opacity"].toString().toInt()
                     }
 
                     //border
                     if(rcm.containsKey("border")){
                         val border = rcm["border"] as JSONObject
-                        if(border.containsKey("color")) RCM_BORDER_COLOR = border["color"].toString().replace("#", "").toInt(16) //convert hex -> deci
+                        if(border.containsKey("color")) RCM_BORDER_COLOR = border["color"].toString().replace("#", "").toIntOrNull(16) ?: 6116423 //convert hex -> deci
                         if(border.containsKey("opacity")) RCM_BORDER_OPACITY = border["opacity"].toString().toInt()
                     }