diff --git a/.idea/deploymentTargetSelector.xml b/.idea/deploymentTargetSelector.xml
index b268ef3..33b856c 100644
--- a/.idea/deploymentTargetSelector.xml
+++ b/.idea/deploymentTargetSelector.xml
@@ -4,6 +4,14 @@
     <selectionStates>
       <SelectionState runConfigName="app">
         <option name="selectionMode" value="DROPDOWN" />
+        <DropdownSelection timestamp="2024-05-21T19:21:10.934414500Z">
+          <Target type="DEFAULT_BOOT">
+            <handle>
+              <DeviceId pluginId="PhysicalDevice" identifier="serial=E6FQZLDQ9LOV7955" />
+            </handle>
+          </Target>
+        </DropdownSelection>
+        <DialogSelection />
       </SelectionState>
     </selectionStates>
   </component>
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index d3f801a..6dd1798 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -12,8 +12,8 @@ android {
         applicationId = "com.example.myapplication"
         minSdk = 26
         targetSdk = 34
-        versionCode = 20240518
-        versionName = "v20240518"
+        versionCode = 20240521
+        versionName = "v20240521"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
diff --git a/app/src/main/java/com/example/myapplication/MainActivity.kt b/app/src/main/java/com/example/myapplication/MainActivity.kt
index c4779f0..cb4f3b3 100644
--- a/app/src/main/java/com/example/myapplication/MainActivity.kt
+++ b/app/src/main/java/com/example/myapplication/MainActivity.kt
@@ -15,6 +15,7 @@ import android.os.VibrationEffect
 import android.os.Vibrator
 import android.provider.Settings
 import android.telephony.TelephonyManager
+import android.text.Html
 import android.text.InputFilter
 import android.text.InputType
 import android.util.Log
@@ -416,7 +417,7 @@ class MainActivity : AppCompatActivity() {
             buttons.setBackgroundColor(Color.parseColor("#3F51B4"))
             buttons.isEnabled = true
             buttons.isClickable = true
-            buttons.text = null
+            buttons.text = " "
 
             buttons.animate()
                 .translationY(0f)
@@ -477,7 +478,7 @@ class MainActivity : AppCompatActivity() {
             numberstar = (minStarBubble..maxStarBubble).random()
             val buttonss = findViewById<Button>(buttonIds[numberstar])
             buttonss.setBackgroundColor(Color.YELLOW)
-            buttonss.text = "★"
+            buttonss.text = Html.fromHtml("<font color='#009688'>★</font>")
             buttonss.textSize = 44f
             buttonss.setTextColor(Color.parseColor("#2B2D30"))
             buttonss.startAnimation(AnimationUtils.loadAnimation(this, R.anim.shake))
@@ -619,7 +620,13 @@ class MainActivity : AppCompatActivity() {
                         if (scorevalue.isNotEmpty()) {
                             val numa: Int = scorevalue.toInt()
                             val numb: Int = arg1.toInt()
-                            val result = numa + numb
+
+                            val result: Int = if (numb == 0) {
+                                numa - 10
+                            } else {
+                                numa + numb
+                            }
+
                             val finalresult = result.toString()
                             myRef.child("score").setValue(finalresult)
 
@@ -628,7 +635,12 @@ class MainActivity : AppCompatActivity() {
                             val scorevaluenow: String = textView1.text.toString()
                             val numanow: Int = scorevaluenow.toInt()
                             val numbnow: Int = arg1.toInt()
-                            val resultnow = numbnow + numanow
+
+                            val resultnow: Int = if (numb == 0) {
+                                numanow - 10
+                            } else {
+                                numanow + numbnow
+                            }
                             textView1.text = resultnow.toString()
 
                             //delayscore(numanow, resultnow)
@@ -1000,6 +1012,10 @@ class MainActivity : AppCompatActivity() {
 
     private fun checkButtonColor(arg1: CharSequence) {
         when (arg1) {
+            " " -> {
+                savescore("0")
+            }
+
             "+1" -> {
                 savescore("1")
             }
@@ -1069,6 +1085,5 @@ class MainActivity : AppCompatActivity() {
         private const val TAG = "AnonymousAuth"
     }
 
-
 }
 
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 3d1f71d..e24937d 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -327,9 +327,9 @@
 
     <ImageView
         android:id="@+id/imageView2"
-        android:layout_width="16dp"
-        android:layout_height="16dp"
-        android:layout_marginTop="6dp"
+        android:layout_width="22dp"
+        android:layout_height="22dp"
+        android:layout_marginTop="3dp"
         app:layout_constraintEnd_toStartOf="@+id/textView1"
         app:layout_constraintTop_toTopOf="parent"
         app:srcCompat="@drawable/circle"
diff --git a/build.gradle.kts b/build.gradle.kts
index 6f2598d..b84e5ad 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    id("com.android.application") version "8.4.0" apply false
+    id("com.android.application") version "8.4.1" apply false
     id("org.jetbrains.kotlin.android") version "1.9.22" apply false
     id("com.google.gms.google-services") version "4.4.1" apply false
 }