diff --git a/sample/build.gradle b/sample/build.gradle
index c79271d..eb39c82 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -11,6 +11,9 @@ android {
         versionCode 1
         versionName "1.0"
     }
+    buildFeatures {
+        viewBinding = true
+    }
     compileOptions {
         sourceCompatibility 1.8
         targetCompatibility 1.8
diff --git a/sample/src/main/AndroidManifest.xml b/sample/src/main/AndroidManifest.xml
index 47d1f9f..d8f60ce 100644
--- a/sample/src/main/AndroidManifest.xml
+++ b/sample/src/main/AndroidManifest.xml
@@ -17,6 +17,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".ColorSampleActivity" />
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/sample/src/main/java/soup/neumorphism/sample/ColorSampleActivity.kt b/sample/src/main/java/soup/neumorphism/sample/ColorSampleActivity.kt
new file mode 100644
index 0000000..aed5233
--- /dev/null
+++ b/sample/src/main/java/soup/neumorphism/sample/ColorSampleActivity.kt
@@ -0,0 +1,61 @@
+package soup.neumorphism.sample
+
+import android.content.res.ColorStateList
+import android.graphics.Color
+import android.os.Bundle
+import android.view.LayoutInflater
+import androidx.appcompat.app.AppCompatActivity
+import soup.neumorphism.sample.databinding.ActivitySampleColorBinding
+
+class ColorSampleActivity : AppCompatActivity() {
+
+    private lateinit var binding: ActivitySampleColorBinding
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivitySampleColorBinding.inflate(LayoutInflater.from(this))
+        setContentView(binding.root)
+
+        onBackgroundColorChanged(Color.RED)
+    }
+
+    private fun onBackgroundColorChanged(backgroundColor: Int) {
+        binding.run {
+            card.setBackgroundColor(backgroundColor)
+            imageView.setBackgroundColor(backgroundColor)
+            imageButton.setBackgroundColor(backgroundColor)
+            button.setBackgroundColor(backgroundColor)
+            fab.setBackgroundColor(backgroundColor)
+        }
+    }
+
+    private fun onBackgroundColorChanged(backgroundColor: ColorStateList?) {
+        binding.run {
+            card.setBackgroundColor(backgroundColor)
+            imageView.setBackgroundColor(backgroundColor)
+            imageButton.setBackgroundColor(backgroundColor)
+            button.setBackgroundColor(backgroundColor)
+            fab.setBackgroundColor(backgroundColor)
+        }
+    }
+
+    private fun onStrokeColorChanged(strokeColor: ColorStateList?) {
+        binding.run {
+            card.setStrokeColor(strokeColor)
+            imageView.setStrokeColor(strokeColor)
+            imageButton.setStrokeColor(strokeColor)
+            button.setStrokeColor(strokeColor)
+            fab.setStrokeColor(strokeColor)
+        }
+    }
+
+    private fun onStrokeWidthChanged(strokeWidth: Float) {
+        binding.run {
+            card.setStrokeWidth(strokeWidth)
+            imageView.setStrokeWidth(strokeWidth)
+            imageButton.setStrokeWidth(strokeWidth)
+            button.setStrokeWidth(strokeWidth)
+            fab.setStrokeWidth(strokeWidth)
+        }
+    }
+}
diff --git a/sample/src/main/java/soup/neumorphism/sample/MainActivity.kt b/sample/src/main/java/soup/neumorphism/sample/MainActivity.kt
index ff875c3..2da2fe2 100644
--- a/sample/src/main/java/soup/neumorphism/sample/MainActivity.kt
+++ b/sample/src/main/java/soup/neumorphism/sample/MainActivity.kt
@@ -1,6 +1,8 @@
 package soup.neumorphism.sample
 
+import android.content.Intent
 import android.os.Bundle
+import android.view.View
 import androidx.appcompat.app.AppCompatActivity
 
 class MainActivity : AppCompatActivity() {
@@ -8,5 +10,9 @@ class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
+
+        findViewById<View>(R.id.button).setOnClickListener {
+            startActivity(Intent(this, ColorSampleActivity::class.java))
+        }
     }
 }
diff --git a/sample/src/main/res/drawable-night/gradation.xml b/sample/src/main/res/drawable-night/gradation.xml
new file mode 100644
index 0000000..e212c87
--- /dev/null
+++ b/sample/src/main/res/drawable-night/gradation.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <gradient
+        android:angle="135"
+        android:endColor="#444444"
+        android:startColor="#111111" />
+</shape>
diff --git a/sample/src/main/res/drawable/gradation.xml b/sample/src/main/res/drawable/gradation.xml
new file mode 100644
index 0000000..e835882
--- /dev/null
+++ b/sample/src/main/res/drawable/gradation.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <gradient
+        android:angle="135"
+        android:endColor="#eeeeee"
+        android:startColor="#cccccc" />
+</shape>
diff --git a/sample/src/main/res/layout/activity_sample_color.xml b/sample/src/main/res/layout/activity_sample_color.xml
new file mode 100644
index 0000000..3e7cdf4
--- /dev/null
+++ b/sample/src/main/res/layout/activity_sample_color.xml
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ColorSampleActivity">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <soup.neumorphism.NeumorphCardView
+            android:layout_width="150dp"
+            android:layout_height="150dp"
+            android:layout_gravity="center_horizontal"
+            app:layout_constraintEnd_toStartOf="@id/pressed_card"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/textview">
+
+            <View
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:background="@drawable/gradation" />
+
+        </soup.neumorphism.NeumorphCardView>
+
+        <soup.neumorphism.NeumorphCardView
+            android:id="@+id/card"
+            android:layout_width="150dp"
+            android:layout_height="150dp"
+            android:layout_gravity="center_horizontal"
+            app:layout_constraintEnd_toStartOf="@id/pressed_card"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/textview" />
+
+        <soup.neumorphism.NeumorphImageView
+            android:id="@+id/image_view"
+            style="@style/Widget.Neumorph.ImageButton"
+            android:layout_width="88dp"
+            android:layout_height="88dp"
+            android:layout_gravity="center_horizontal"
+            android:scaleType="centerInside"
+            android:src="@drawable/ic_daynight_sky"
+            app:layout_constraintEnd_toStartOf="@id/pressed_image_view"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/card_barrier" />
+
+        <soup.neumorphism.NeumorphImageButton
+            android:id="@+id/image_button"
+            style="@style/Widget.Neumorph.ImageButton"
+            android:layout_width="88dp"
+            android:layout_height="88dp"
+            android:layout_gravity="center_horizontal"
+            android:scaleType="centerInside"
+            android:src="@drawable/ic_daynight_sky"
+            app:layout_constraintEnd_toStartOf="@id/pressed_image_view"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/card_barrier" />
+
+        <soup.neumorphism.NeumorphButton
+            android:id="@+id/button"
+            style="@style/Widget.Neumorph.Button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:text="Button"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent" />
+
+        <soup.neumorphism.NeumorphFloatingActionButton
+            android:id="@+id/fab"
+            style="@style/Widget.Neumorph.FloatingActionButton"
+            android:layout_width="88dp"
+            android:layout_height="88dp"
+            android:layout_gravity="center_horizontal"
+            android:scaleType="centerInside"
+            android:src="@drawable/ic_filter"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent" />
+
+    </LinearLayout>
+</ScrollView>