diff --git a/.gitignore b/.gitignore
index 46b5510..4176dd1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,7 +47,14 @@ captures/
 .idea/runConfigurations.xml
 .idea/misc.xml
 .idea/inspectionProfiles
+.idea/markdown-navigator-enh.xml
+.idea/markdown-navigator.xml
 .idea/codeStyles
+.idea/codeStyles/Project.xml
+.idea/compiler.xml
+.idea/jarRepositories.xml
+
+≈codeStyles
 
 # Android Studio 3 in .gitignore file.
 .idea/caches
diff --git a/app/build.gradle b/app/build.gradle
index 46608aa..8bb4602 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,34 +1,39 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
+apply plugin: 'kotlin-kapt'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 29
+
     defaultConfig {
         applicationId "yaroslav.ovdiienko.idivision.rangepicker"
 
         minSdkVersion 21
-        targetSdkVersion 28
+        targetSdkVersion 29
 
         versionCode 1
         versionName "1.0"
 
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
+
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
 
     kotlinOptions {
-        jvmTarget = '1.8'
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
     }
+
     testOptions {
         unitTests.includeAndroidResources = true
     }
@@ -39,13 +44,14 @@ dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
 
     // Kotlin
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 
     // Android libs
-    implementation 'androidx.appcompat:appcompat:1.1.0'
-    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    implementation 'com.google.android.material:material:1.2.0-alpha01'
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.1'
+    implementation 'com.google.android.material:material:1.2.1'
 
+    // Tests
     testImplementation 'junit:junit:4.12'
     testImplementation 'androidx.test:core:1.2.0'
     testImplementation 'org.mockito:mockito-core:2.23.0'
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index f1b4245..af1ad56 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -19,3 +19,28 @@
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
+
+-keep class com.google.**
+-dontwarn com.google.**	-dontwarn com.google.**
+
+-keep class **.R$* {
+    <fields>;	    <fields>;
+}
+
+-keep public class * extends java.lang.Exception
+
+-dontwarn kotlin.Unit
+
+-dontwarn javax.annotation.**
+
+-keep class com.squareup.picasso.** { *; }
+
+-keep class * implements com.willowtreeapps.hyperion.plugin.v1.Plugin {
+  *;
+}
+-keep class * implements com.willowtreeapps.hyperion.plugin.v1.PluginModule {
+  *;
+}
+-keep class * implements com.willowtreeapps.hyperion.attr.collectors.TypedAttributeCollector {
+  <init>();
+}
\ No newline at end of file
diff --git a/app/src/main/java/yaroslav/ovdiienko/idivision/rangepicker/MainActivity.kt b/app/src/main/java/yaroslav/ovdiienko/idivision/rangepicker/MainActivity.kt
index 9ff342a..e43331b 100644
--- a/app/src/main/java/yaroslav/ovdiienko/idivision/rangepicker/MainActivity.kt
+++ b/app/src/main/java/yaroslav/ovdiienko/idivision/rangepicker/MainActivity.kt
@@ -1,42 +1,53 @@
 package yaroslav.ovdiienko.idivision.rangepicker
 
 import android.os.Bundle
+import android.view.View
 import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
 import kotlinx.android.synthetic.main.activity_main.*
 import yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.Option
 
+
 class MainActivity : AppCompatActivity() {
 
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_main)
-
-        picker.apply {
-            setOptions(getOptions())
-            setDefaultSelectedPositions(0 to 4)
-            setOnRangeSelectedListener { view, leftPoint, rightPoint ->
-                Toast.makeText(
-                    this@MainActivity,
-                    view.getSelectedIndexes().toString(),
-                    Toast.LENGTH_SHORT
-                ).show()
-            }
-        }
-
-        btn_get_values.setOnClickListener {
-            Toast.makeText(this, "${picker.getSelectedItems()}", Toast.LENGTH_SHORT).show()
-            picker.resetToDefaultState()
-        }
+  override fun onCreate(savedInstanceState: Bundle?) {
+    super.onCreate(savedInstanceState)
+    setContentView(R.layout.activity_main)
+
+//        oldView()
+    newView()
+  }
+
+  private fun oldView() {
+    picker.apply {
+      visibility = View.VISIBLE
+      setOptions(getOptions())
+      setDefaultSelectedPositions(0 to 4)
+      setOnRangeSelectedListener { view, leftPoint, rightPoint ->
+        Toast.makeText(
+          this@MainActivity,
+          view.getSelectedIndexes().toString(),
+          Toast.LENGTH_SHORT
+        ).show()
+      }
     }
 
-    private fun getOptions(): List<Option> {
-        return listOf(
-            Option("Single"),
-            Option("2"),
-            Option("3"),
-            Option("4"),
-            Option("5+")
-        )
+    btn_get_values.visibility = View.VISIBLE
+    btn_get_values.setOnClickListener {
+      Toast.makeText(this, "${picker.getSelectedItems()}", Toast.LENGTH_SHORT).show()
+      picker.resetToDefaultState()
     }
-}
+  }
+
+  private fun newView() {
+    dov.apply {
+      addOptions(getOptionsStrings())
+    }
+  }
+
+  private fun getOptions(): List<Option> {
+    return getOptionsStrings().map { Option(it) }
+  }
+
+  private fun getOptionsStrings() = listOf("Single", "2", "3", "4", "5+")
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 69b2664..1cb0d14 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -8,6 +8,16 @@
     android:orientation="vertical"
     tools:context=".MainActivity">
 
+    <Button
+        android:id="@+id/btn_get_values"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="right"
+        android:layout_marginTop="16dp"
+        android:layout_marginRight="16dp"
+        android:text="get"
+        android:visibility="gone" />
+
     <yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.RangePickerView
         android:id="@+id/picker"
         android:layout_width="match_parent"
@@ -15,16 +25,15 @@
         android:layout_marginLeft="8dp"
         android:layout_marginTop="16dp"
         android:layout_marginRight="8dp"
+        android:visibility="gone"
         app:backgroundSelectedTint="@color/colorPrimary"
         app:cornerRadius="5dp" />
 
-    <Button
-        android:id="@+id/btn_get_values"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="right"
-        android:layout_marginTop="16dp"
-        android:layout_marginRight="16dp"
-        android:text="get" />
+    <yaroslav.ovdiienko.idivision.rangepickerview.pickers.DuoOptionView
+        android:id="@+id/dov"
+        android:layout_width="match_parent"
+        android:layout_height="50dp"
+        android:layout_marginLeft="8dp"
+        android:layout_marginRight="8dp" />
 </LinearLayout>
 
diff --git a/build.gradle b/build.gradle
index c5f1d76..f0aaf21 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,13 +1,13 @@
-// Top-level build file where you can add configuration options common to all sub-projects/modules.
-
 buildscript {
-    ext.kotlin_version = '1.3.31'
+    ext.kotlin_version = '1.4.10'
+
     repositories {
         google()
         jcenter()
     }
+
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.1'
+        classpath 'com.android.tools.build:gradle:4.0.1'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
diff --git a/gradle.properties b/gradle.properties
index 85be9ea..4a5855f 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -13,3 +13,5 @@ org.gradle.jvmargs=-Xmx1536m
 # org.gradle.parallel=true
 # Kotlin code style for this project: "official" or "obsolete":
 kotlin.code.style=official
+android.useAndroidX=true
+android.enableJetifier=true
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 68f3b83..02345ca 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Tue Oct 22 19:08:07 EEST 2019
+#Tue Sep 15 18:39:25 EEST 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
diff --git a/rangepickerview/build.gradle b/rangepickerview/build.gradle
index 2f7a3f0..2d59a63 100644
--- a/rangepickerview/build.gradle
+++ b/rangepickerview/build.gradle
@@ -1,15 +1,16 @@
 apply plugin: 'com.android.library'
-apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+apply plugin: 'kotlin-kapt'
 apply plugin: 'com.github.dcendents.android-maven'
 group = 'com.github.yaroslav-android'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 29
 
     defaultConfig {
         minSdkVersion 21
-        targetSdkVersion 28
+        targetSdkVersion 29
 
         versionCode 3
         versionName "1.0.8-beta02"
@@ -19,13 +20,18 @@ android {
 
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
+        debug {
+            minifyEnabled false
+            testCoverageEnabled false
+            debuggable true
+        }
     }
 
     kotlinOptions {
-        jvmTarget = '1.8'
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
     }
 
     testOptions {
@@ -38,10 +44,11 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
     // Kotlin
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 
     // Android libs
-    implementation 'androidx.appcompat:appcompat:1.1.0'
+    // Android libs
+    implementation 'androidx.appcompat:appcompat:1.2.0'
 
     testImplementation 'junit:junit:4.12'
     testImplementation 'androidx.test:core:1.2.0'
diff --git a/rangepickerview/src/main/AndroidManifest.xml b/rangepickerview/src/main/AndroidManifest.xml
index c7b42c6..27cef02 100644
--- a/rangepickerview/src/main/AndroidManifest.xml
+++ b/rangepickerview/src/main/AndroidManifest.xml
@@ -2,4 +2,5 @@
     package="yaroslav.ovdiienko.idivision.rangepickerview">
 
     <uses-permission android:name="android.permission.VIBRATE" />
+
 </manifest>
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/DuoOptionView.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/DuoOptionView.kt
new file mode 100644
index 0000000..9348a44
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/DuoOptionView.kt
@@ -0,0 +1,167 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.pickers
+
+import android.content.Context
+import android.graphics.Canvas
+import android.graphics.Paint
+import android.graphics.RectF
+import android.util.AttributeSet
+import android.view.MotionEvent
+import yaroslav.ovdiienko.idivision.rangepickerview.pickers.core.BaseOptionsView
+import yaroslav.ovdiienko.idivision.rangepickerview.pickers.core.DuoAgreementExtension
+import yaroslav.ovdiienko.idivision.rangepickerview.pickers.core.model.RectA
+import yaroslav.ovdiienko.idivision.rangepickerview.util.extension.debugDraw
+import yaroslav.ovdiienko.idivision.rangepickerview.util.extension.update
+import kotlin.math.abs
+
+
+/***/
+class DuoOptionView @JvmOverloads constructor(
+  context: Context,
+  attrs: AttributeSet? = null,
+  defStyleAttr: Int = 0
+) : BaseOptionsView(context, attrs, defStyleAttr), DuoAgreementExtension {
+
+  /* TODO: handle default style */
+
+  private val leftChip: RectA = RectA()
+  private val rightChip: RectA = RectA()
+
+  private val chipBackgroundPaint: Paint = getPaint()
+  private val stripBackgroundPaint: Paint = getPaint()
+  private val textPaint: Paint = getPaint()
+  private val debugPointPaint: Paint by lazy { getDebugPaint() }
+
+  init {
+    chipBackgroundPaint.color = viewAttributes.pointerBackgroundColor
+
+    textPaint.apply {
+      textSize = viewAttributes.textSize
+      typeface = viewAttributes.fontFamily
+      textAlign = Paint.Align.CENTER
+    }
+
+    stripBackgroundPaint.apply {
+      color = viewAttributes.stripBackgroundColor
+      strokeWidth = viewAttributes.stripThickness
+    }
+
+    /* TODO: set other Paints */
+  }
+
+  override fun calculateTextWidthSum() {
+    textWidthSum = 0
+
+    options.getOptions().forEachIndexed { index, option ->
+      states[index].position = index
+      textPaint.getTextBounds(option, 0, option.length, states[index].textBounds)
+      textWidthSum += states[index].textBounds.width()
+    }
+  }
+
+  override fun onLayout(changed: Boolean, left: Int, top: Int, right: Int, bottom: Int) {
+    super.onLayout(changed, left, top, right, bottom)
+
+    cellWidth = (viewBounds.width().toFloat() - textWidthSum) / options.getOptions().size
+    spaceBetweenCells = cellWidth / options.getOptions().size
+
+    /* TODO: [2.0.0] add ability to change default selected items */
+    val lastElementIndex = options.getOptions().size - 1
+    var previousRight = spaceBetweenCells
+
+    options.getOptions().forEachIndexed { index, option ->
+
+      val coordinates = states[index].textCoordinates
+      val widthOfText = textPaint.measureText(option)
+      val topMargin = viewBounds.height() / 30f
+
+      states[index].textCoordinates
+        .update(
+          top = topMargin,
+          left = if (index == 0) previousRight else previousRight + spaceBetweenCells - (spaceBetweenCells / options.getOptions().size),
+          right = previousRight + cellWidth + (widthOfText / lastElementIndex) + (spaceBetweenCells / options.getOptions().size),
+          bottom = viewBounds.height() - topMargin
+        )
+
+      previousRight = coordinates.right
+    }
+
+    val adjustment = ((viewBounds.width().toFloat() - textWidthSum) - (previousRight)) / options.getOptions().size
+
+    states.forEach { state ->
+      state.textCoordinates.update(
+        left = state.textCoordinates.left + abs(adjustment),
+        right = state.textCoordinates.right + abs(adjustment)
+      )
+
+      // FIXME: restore left/right chips selected state.
+      if (state.position == 0) {
+        leftChip.set(state.textCoordinates)
+      } else if (state.position == lastElementIndex) {
+        rightChip.set(state.textCoordinates)
+      }
+    }
+  }
+
+  override fun onDraw(canvas: Canvas) {
+    super.onDraw(canvas)
+
+    states.forEach {
+      drawClickableChip(canvas, it.textCoordinates, chipBackgroundPaint)
+    }
+
+    drawStrip(canvas, leftChip, rightChip, stripBackgroundPaint)
+    drawChip(canvas, leftChip, chipBackgroundPaint)
+    drawChip(canvas, rightChip, chipBackgroundPaint)
+    drawTexts(canvas, textPaint, isMask = false)
+
+    canvas.save()
+    canvas.clipRect(leftChip)
+    drawTexts(canvas, textPaint, isMask = true)
+    canvas.restore()
+
+    canvas.save()
+    canvas.clipRect(rightChip)
+    drawTexts(canvas, textPaint, isMask = true)
+    canvas.restore()
+
+    debugDraw { drawHelpingRectangles(canvas, chipToMove, debugPointPaint) }
+  }
+
+  private fun drawStrip(canvas: Canvas, startRect: RectF, endRect: RectF, paint: Paint) {
+    canvas.drawLine(
+      startRect.centerX(),
+      startRect.centerY(),
+      endRect.centerX(),
+      endRect.centerY(),
+      paint
+    )
+  }
+
+  override fun handleActionDown(event: MotionEvent) {
+    super.handleActionDown(event)
+
+    when {
+      leftChip.contains(event.x, event.y) -> chipToMove = leftChip
+      rightChip.contains(event.x, event.y) -> chipToMove = rightChip
+    }
+  }
+
+  override fun handleActionMove(event: MotionEvent) {
+    super.handleActionMove(event)
+
+    val delta = downPoint.x - event.rawX
+    moveRect(delta)
+
+    downPoint.x = event.rawX
+    invalidate()
+  }
+
+  override fun performClick(): Boolean {
+    return super.performClick().also { resetDownPoints() }
+  }
+
+  override fun reset(withAnimation: Boolean) {
+    resetDownPoints()
+    /* TODO: reset leftChip and rightChip to calculated initial positions */
+  }
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/SingleOptionView.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/SingleOptionView.kt
new file mode 100644
index 0000000..9e141f2
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/SingleOptionView.kt
@@ -0,0 +1,14 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.pickers
+
+import android.content.Context
+import android.util.AttributeSet
+import yaroslav.ovdiienko.idivision.rangepickerview.pickers.core.BaseOptionsView
+import yaroslav.ovdiienko.idivision.rangepickerview.pickers.core.DuoAgreementExtension
+
+
+/* planned in 2.0.0 */
+abstract class SingleOptionView @JvmOverloads constructor(
+  context: Context,
+  attrs: AttributeSet? = null,
+  defStyleAttr: Int = 0
+) : BaseOptionsView(context, attrs, defStyleAttr), DuoAgreementExtension
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/BaseOptionsView.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/BaseOptionsView.kt
new file mode 100644
index 0000000..82b46d2
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/BaseOptionsView.kt
@@ -0,0 +1,248 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.pickers.core
+
+import android.content.Context
+import android.graphics.*
+import android.util.AttributeSet
+import android.view.MotionEvent
+import android.view.View
+import android.view.ViewGroup
+import android.view.WindowManager
+import yaroslav.ovdiienko.idivision.rangepickerview.pickers.core.model.RectA
+import yaroslav.ovdiienko.idivision.rangepickerview.pickers.models.Intersection
+import yaroslav.ovdiienko.idivision.rangepickerview.pickers.models.Options
+import yaroslav.ovdiienko.idivision.rangepickerview.pickers.models.State
+import yaroslav.ovdiienko.idivision.rangepickerview.util.Dimension
+import yaroslav.ovdiienko.idivision.rangepickerview.util.DisplayUtils
+import yaroslav.ovdiienko.idivision.rangepickerview.util.extension.log
+import yaroslav.ovdiienko.idivision.rangepickerview.util.extension.requestDisallowInterceptTouchEvent
+import yaroslav.ovdiienko.idivision.rangepickerview.util.extension.update
+import yaroslav.ovdiienko.idivision.rangepickerview.util.view.ViewAttributes
+import kotlin.math.min
+
+
+/***/
+abstract class BaseOptionsView @JvmOverloads constructor(
+  context: Context,
+  attrs: AttributeSet? = null,
+  defStyleAttr: Int = 0
+) : View(context, attrs, defStyleAttr), OptionsAgreement, UiModificationsAgreement {
+
+  protected val viewAttributes: ViewAttributes = ViewAttributes()
+  protected val dimension: Dimension =
+    DisplayUtils(context.getSystemService(Context.WINDOW_SERVICE) as WindowManager)
+
+  protected val viewBounds: Rect = Rect()
+  protected val leftBound: RectF = RectF()
+  protected val rightBound: RectF = RectF()
+  protected var chipToMove: RectA? = null
+
+  protected val downPoint: PointF = PointF(EMPTY_POINT, EMPTY_POINT)
+
+  protected val options: Options = Options()
+  protected val states: MutableList<State> = mutableListOf()
+  protected var textWidthSum: Int = 0
+  protected var cellWidth: Float = 0f
+  protected var spaceBetweenCells: Float = 0f
+
+  init {
+    val parser = ViewAttributes.Parser(context, dimension, attrs)
+    viewAttributes.applyValues(parser)
+  }
+
+  abstract fun calculateTextWidthSum()
+
+  override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
+    super.onMeasure(widthMeasureSpec, heightMeasureSpec)
+
+    val parameters = layoutParams as ViewGroup.MarginLayoutParams
+
+    /* TODO: [2.0.0] add min height control */
+    minimumHeight = dimension.toDp(ViewAttributes.Parser.DEFAULT_MIN_HEIGHT).toInt()
+
+    val desiredWidth =
+      suggestedMinimumWidth + paddingLeft + paddingRight + parameters.marginStart + parameters.marginEnd
+    val desiredHeight =
+      suggestedMinimumHeight + paddingTop + paddingBottom + parameters.topMargin + parameters.bottomMargin
+
+    setMeasuredDimension(
+      measureDimension(desiredWidth, widthMeasureSpec),
+      measureDimension(desiredHeight, heightMeasureSpec)
+    )
+  }
+
+  private fun measureDimension(desiredSize: Int, measureSpec: Int): Int {
+    val specMode = MeasureSpec.getMode(measureSpec)
+    val specSize = MeasureSpec.getSize(measureSpec)
+
+    var result: Int
+    if (specMode == MeasureSpec.EXACTLY) {
+      result = specSize
+    } else {
+      result = desiredSize
+      if (specMode == MeasureSpec.AT_MOST) {
+        result = min(result, specSize)
+      }
+    }
+
+    if (result < desiredSize) {
+      log(isDebug = false) { "The view is too small, the content might get cut" }
+    }
+
+    return result
+  }
+
+  override fun onLayout(changed: Boolean, left: Int, top: Int, right: Int, bottom: Int) {
+    super.onLayout(changed, left, top, right, bottom)
+    getLocalVisibleRect(viewBounds)
+
+    leftBound.set(viewBounds)
+    rightBound.set(viewBounds)
+
+    leftBound.update(right = viewBounds.left + 10f)
+    rightBound.update(left = viewBounds.right - 10f)
+  }
+
+  protected fun drawHelpingRectangles(canvas: Canvas, rect: RectF?, paint: Paint) {
+    val y = (rect?.height() ?: 0f) / 2
+
+    canvas.drawPoint(rect?.left ?: 0f, y, paint)
+    canvas.drawPoint(rect?.right ?: 0f, y, paint)
+
+    canvas.drawRect(leftBound, paint)
+    canvas.drawRect(rightBound, paint)
+  }
+
+  protected fun drawChip(canvas: Canvas, rect: RectF, paint: Paint) {
+    paint.color = viewAttributes.pointerBackgroundColor
+
+    val radius = viewAttributes.pointerCornerRadius
+    canvas.drawRoundRect(rect, radius, radius, paint)
+  }
+
+  protected fun drawClickableChip(canvas: Canvas, rect: RectF, paint: Paint) {
+    paint.color = Color.TRANSPARENT
+
+    val radius = viewAttributes.pointerCornerRadius
+    canvas.drawRoundRect(rect, radius, radius, paint)
+  }
+
+  protected fun drawTexts(canvas: Canvas, paint: Paint, isMask: Boolean) {
+    paint.apply {
+      color = when {
+        isMask -> {
+          viewAttributes.textColorOnPoint
+        }
+        else -> viewAttributes.textColorOnSurface
+      }
+    }
+
+    states.forEach { state ->
+      canvas.drawText(
+        options.getOption(state.position),
+        state.textCoordinates.centerX(),
+        state.textCoordinates.centerY() + state.textBounds.height() / 3.5f,
+        paint
+      )
+    }
+  }
+
+  override fun onTouchEvent(event: MotionEvent): Boolean {
+    when (event.action and MotionEvent.ACTION_MASK) {
+      MotionEvent.ACTION_DOWN -> handleActionDown(event)
+      MotionEvent.ACTION_MOVE -> handleActionMove(event)
+      MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> performClick()
+      else -> return super.onTouchEvent(event)
+    }
+    return true
+  }
+
+  open fun handleActionDown(event: MotionEvent) {
+    downPoint.set(event.rawX, event.rawY)
+  }
+
+  open fun handleActionMove(event: MotionEvent) {
+    requestDisallowInterceptTouchEvent()
+  }
+
+  protected fun moveRect(offset: Float) {
+    chipToMove?.run {
+      val direction = when {
+        intersects(leftBound) -> Intersection.Left
+        intersects(rightBound) -> Intersection.Right
+        else -> Intersection.Undefined
+      }
+
+      moveRectOutOfBounds(direction, this)
+      if (direction !is Intersection.Undefined) return
+
+      val newLeft = left - offset
+      val newRight = right - offset
+
+      left = newLeft
+      right = newRight
+    }
+  }
+
+  private fun moveRectOutOfBounds(intersection: Intersection, r: RectA) {
+    with(r) {
+      when (intersection) {
+        is Intersection.Left -> {
+          left += 1
+          right += 1
+        }
+        is Intersection.Right -> {
+          left -= 1
+          right -= 1
+        }
+        Intersection.Undefined -> {
+          // Ignore.
+        }
+      }
+    }
+  }
+
+  protected fun resetDownPoints() {
+    downPoint.set(EMPTY_POINT, EMPTY_POINT)
+    chipToMove = null
+  }
+
+  override fun addOption(option: String) {
+    options.addOption(option)
+    states.add(State())
+    calculateTextWidthSum()
+    requestLayout()
+  }
+
+  override fun addOptions(newOptions: List<String>) {
+    options.addOptions(newOptions)
+    states.addAll(MutableList(newOptions.size) { State() })
+    calculateTextWidthSum()
+    requestLayout()
+  }
+
+  override fun replaceOption(at: Int, newOption: String) {
+    options.replaceOption(at, newOption)
+    states[at] = State()
+    calculateTextWidthSum()
+    requestLayout()
+  }
+
+  override fun getOptions() = options.getOptions()
+
+  override fun clearOptions() {
+    options.clear()
+    textWidthSum = 0
+  }
+
+  protected fun getPaint() = Paint(Paint.ANTI_ALIAS_FLAG)
+
+  protected fun getDebugPaint() = Paint(Paint.ANTI_ALIAS_FLAG)
+    .apply {
+      color = Color.BLACK
+      strokeWidth = 10f
+    }
+
+  companion object {
+    const val EMPTY_POINT = -1f
+  }
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/DuoAgreementExtension.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/DuoAgreementExtension.kt
new file mode 100644
index 0000000..fd70213
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/DuoAgreementExtension.kt
@@ -0,0 +1,13 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.pickers.core
+
+
+/* planned in 1.1.0 */
+interface DuoAgreementExtension {
+  // Planned:
+  // fun getSelectedItems(): Pair<Int, Int>
+  // fun setSelectedItems(items: Pair<Int, Int>)
+  // fun addOnScopeSelectedListener(...)
+  // fun removeOnScopeSelectedListener(...)
+  // fun addOnScopeChangeListener(...)
+  // fun removeOnScopeChangeListener(...)
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/OptionsAgreement.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/OptionsAgreement.kt
new file mode 100644
index 0000000..52e4e1e
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/OptionsAgreement.kt
@@ -0,0 +1,10 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.pickers.core
+
+
+interface OptionsAgreement {
+  fun addOption(option: String)
+  fun addOptions(newOptions: List<String>)
+  fun replaceOption(at: Int, newOption: String)
+  fun getOptions(): List<String>
+  fun clearOptions()
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/UiModificationsAgreement.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/UiModificationsAgreement.kt
new file mode 100644
index 0000000..baa1a19
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/UiModificationsAgreement.kt
@@ -0,0 +1,20 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.pickers.core
+
+
+/* planned in 1.2.0 */
+interface UiModificationsAgreement {
+  fun reset(withAnimation: Boolean = true)
+
+  // Planned:
+  // fun setStripColor(color: Int)
+  // fun setSelectedBoxColor(color: Int)
+  // fun setSelectedTextColor(color: Int)
+  // fun setUnselectedTextColor(color: Int)
+  // [?] fun setVibrationPattern(...)
+  // [?] fun enableVibration(...)
+  // [?] fun disableVibration(...)
+  // fun setCornerRadius(radius: Int)
+  // fun setFont(font: Int)
+  // fun setTextSize(size: Int)
+  // fun setStripThickness(thickness: Int)
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/model/RectA.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/model/RectA.kt
new file mode 100644
index 0000000..86774cb
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/core/model/RectA.kt
@@ -0,0 +1,38 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.pickers.core.model
+
+import android.graphics.Rect
+import android.graphics.RectF
+
+
+class RectA : RectF {
+
+  constructor() : super()
+  constructor(r: RectF) : super(r)
+  constructor(r: Rect) : super(r)
+  constructor(
+    left: Float, top: Float, right: Float, bottom: Float
+  ) : super(left, top, right, bottom)
+
+  fun setTop(value: Float) {
+    this.top = value
+  }
+
+  fun setBottom(value: Float) {
+    this.bottom = value
+  }
+
+  fun setRight(value: Float) {
+    this.right = value
+  }
+
+  fun setLeft(value: Float) {
+    this.left = value
+  }
+
+  fun intersects(r: RectF) = intersects(r.left, r.top, r.right, r.bottom)
+
+  companion object {
+    const val LEFT = "left"
+    const val RIGHT = "right"
+  }
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/models/Intersection.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/models/Intersection.kt
new file mode 100644
index 0000000..40b09ff
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/models/Intersection.kt
@@ -0,0 +1,8 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.pickers.models
+
+
+sealed class Intersection {
+  object Left : Intersection()
+  object Right : Intersection()
+  object Undefined : Intersection()
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/models/Options.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/models/Options.kt
new file mode 100644
index 0000000..ab9f0d8
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/models/Options.kt
@@ -0,0 +1,51 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.pickers.models
+
+import yaroslav.ovdiienko.idivision.rangepickerview.util.exceptions.MaxOptionCharactersSizeException
+import yaroslav.ovdiienko.idivision.rangepickerview.util.exceptions.MaxOptionsSizeException
+
+
+data class Options(private val list: MutableList<String> = mutableListOf()) {
+
+  fun addOption(option: String) {
+    check(option)
+    list.add(option)
+  }
+
+  fun replaceOption(at: Int, newOption: String) {
+    check(newOption)
+    list[at] = newOption
+  }
+
+  fun addOptions(options: List<String>) {
+    list.addAll(options)
+  }
+
+  fun getOptions() = list.toList()
+
+  internal fun getOption(at: Int) = list[at]
+
+  fun clear() {
+    list.clear()
+  }
+
+  private fun check(candidate: String) {
+    if (MAX_ELEMENTS_ALLOWED < list.size) {
+      throw MaxOptionsSizeException(
+        "Maximum available size is $MAX_ELEMENTS_ALLOWED elements, " +
+            "but size is ${list.size} elements."
+      )
+    }
+
+    if (MAX_LETTERS_IN_WORD_ALLOWED < candidate.length) {
+      throw MaxOptionCharactersSizeException(
+        "Maximum word length is $MAX_LETTERS_IN_WORD_ALLOWED characters, " +
+            "but length of word \"$candidate\" is ${candidate.length} characters."
+      )
+    }
+  }
+
+  companion object {
+    const val MAX_ELEMENTS_ALLOWED = 5
+    const val MAX_LETTERS_IN_WORD_ALLOWED = 6
+  }
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/models/State.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/models/State.kt
new file mode 100644
index 0000000..6936818
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/pickers/models/State.kt
@@ -0,0 +1,16 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.pickers.models
+
+import android.graphics.Rect
+import android.graphics.RectF
+
+
+data class State(
+  var textCoordinates: RectF = RectF(),
+  var textBounds: Rect = Rect(),
+  var position: Int = UNDEFINED,
+  var isSelected: Boolean = false
+) {
+  companion object {
+    const val UNDEFINED = -1
+  }
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/RangePickerView.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/RangePickerView.kt
index 27b3d42..1068d26 100644
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/RangePickerView.kt
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/RangePickerView.kt
@@ -18,29 +18,32 @@ import android.view.View
 import android.view.ViewConfiguration
 import android.view.WindowManager
 import android.view.animation.AccelerateDecelerateInterpolator
-import yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.AnimatableRectF
+import yaroslav.ovdiienko.idivision.rangepickerview.pickers.core.model.RectA
 import yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.Option
 import yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.RectShape
 import yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.enums.AnimatedRectProperties
 import yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.enums.Direction
 import yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.enums.OptionsState
 import yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.enums.TouchMode
+import yaroslav.ovdiienko.idivision.rangepickerview.util.Dimension
 import yaroslav.ovdiienko.idivision.rangepickerview.util.DisplayUtils
 import yaroslav.ovdiienko.idivision.rangepickerview.util.extension.addAnimationEndListener
 import yaroslav.ovdiienko.idivision.rangepickerview.util.view.AttributeSetParser
 import yaroslav.ovdiienko.idivision.rangepickerview.util.view.IndexContainer
 import kotlin.math.abs
 import kotlin.math.max
+import kotlin.math.min
 
-
+/* Will be dropped in 2.0.0 */
+@Deprecated("RangePickerView is no more valid. Please replace it with another picker.")
 class RangePickerView : View {
     private val rectangleBackgroundPaint: Paint = Paint()
     private val lineBackgroundPaint: Paint = Paint()
     private val textPaint: Paint = Paint()
     private val firstSelectedRect =
-        AnimatableRectF()
+        RectA()
     private val secondSelectedRect =
-        AnimatableRectF()
+        RectA()
     private val viewBounds = Rect()
 
     private var backgroundSelectedTint: Int = 0
@@ -50,7 +53,7 @@ class RangePickerView : View {
     private var stripThickness: Float = 0f
 
     private val options: MutableList<Pair<Option, RectShape>> = mutableListOf()
-    private val displayUtils: DisplayUtils =
+    private val displayUtils: Dimension =
         DisplayUtils(context.getSystemService(Context.WINDOW_SERVICE) as WindowManager)
     private var touchSlop: Int = 0
 
@@ -164,7 +167,7 @@ class RangePickerView : View {
     }
 
     override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
-        minimumHeight = displayUtils.convertDpToPx(DEFAULT_MIN_HEIGHT)
+        minimumHeight = displayUtils.toDp(DEFAULT_MIN_HEIGHT.toFloat()).toInt()
         val desiredWidth =
             suggestedMinimumWidth + paddingLeft + paddingRight
         val desiredHeight =
@@ -181,15 +184,15 @@ class RangePickerView : View {
 
     private fun measureDimension(desiredSize: Int, measureSpec: Int): Int {
         var result: Int
-        val specMode = View.MeasureSpec.getMode(measureSpec)
-        val specSize = View.MeasureSpec.getSize(measureSpec)
+        val specMode = MeasureSpec.getMode(measureSpec)
+        val specSize = MeasureSpec.getSize(measureSpec)
 
-        if (specMode == View.MeasureSpec.EXACTLY) {
+        if (specMode == MeasureSpec.EXACTLY) {
             result = specSize
         } else {
             result = desiredSize
-            if (specMode == View.MeasureSpec.AT_MOST) {
-                result = Math.min(result, specSize)
+            if (specMode == MeasureSpec.AT_MOST) {
+                result = min(result, specSize)
             }
         }
 
@@ -671,7 +674,7 @@ class RangePickerView : View {
 
     private fun getObjectAnimation(
         property: AnimatedRectProperties,
-        oldRect: AnimatableRectF,
+        oldRect: RectA,
         rect: RectF,
         duration: Long,
         listener: ValueAnimator.AnimatorUpdateListener? = null
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/AnimatableRectF.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/AnimatableRectF.kt
deleted file mode 100644
index 3d0b3fe..0000000
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/AnimatableRectF.kt
+++ /dev/null
@@ -1,36 +0,0 @@
-package yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model
-
-import android.graphics.Rect
-import android.graphics.RectF
-
-
-class AnimatableRectF : RectF {
-    constructor() : super()
-
-    constructor(left: Float, top: Float, right: Float, bottom: Float) : super(
-        left,
-        top,
-        right,
-        bottom
-    )
-
-    constructor(r: RectF) : super(r)
-
-    constructor(r: Rect) : super(r)
-
-    fun setTop(top: Float) {
-        this.top = top
-    }
-
-    fun setBottom(bottom: Float) {
-        this.bottom = bottom
-    }
-
-    fun setRight(right: Float) {
-        this.right = right
-    }
-
-    fun setLeft(left: Float) {
-        this.left = left
-    }
-}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/Option.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/Option.kt
index 009785a..cc351dd 100644
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/Option.kt
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/Option.kt
@@ -1,6 +1,6 @@
 package yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model
 
-
+@Deprecated("RangePickerView is no more valid. Please replace it with ScopePikerView.")
 data class Option(private val option: String) {
     fun getOption(): String {
         return option
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/RectShape.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/RectShape.kt
index ceb96ed..b4f4a79 100644
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/RectShape.kt
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/RectShape.kt
@@ -3,7 +3,7 @@ package yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model
 import android.graphics.Rect
 import android.graphics.RectF
 
-
+@Deprecated("RangePickerView is no more valid. Please replace it with ScopePikerView.")
 class RectShape {
     var coordinateRect: RectF = RectF()
     var textBoundsRect: Rect = Rect()
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/AnimatedRectProperties.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/AnimatedRectProperties.kt
index 0e0052d..398b727 100644
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/AnimatedRectProperties.kt
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/AnimatedRectProperties.kt
@@ -1,6 +1,7 @@
 package yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.enums
 
 
+@Deprecated("RangePickerView is no more valid. Please replace it with ScopePikerView.")
 enum class AnimatedRectProperties(val property: String) {
     LEFT("left"),
     RIGHT("right"),
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/Direction.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/Direction.kt
index f3918cc..6e3cc54 100644
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/Direction.kt
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/Direction.kt
@@ -1,6 +1,6 @@
 package yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.enums
 
-
+@Deprecated("RangePickerView is no more valid. Please replace it with ScopePikerView.")
 enum class Direction {
     TO_RIGHT,
     TO_LEFT,
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/OptionsState.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/OptionsState.kt
index f1cef45..f933e90 100644
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/OptionsState.kt
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/OptionsState.kt
@@ -1,6 +1,6 @@
 package yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.enums
 
-
+@Deprecated("RangePickerView is no more valid. Please replace it with ScopePikerView.")
 enum class OptionsState(val tapId: Int) {
     SINGLE(0),
     MULTIPLE(1),
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/TouchMode.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/TouchMode.kt
index 2ae89ae..ccc3415 100644
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/TouchMode.kt
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/rangepicker/model/enums/TouchMode.kt
@@ -1,6 +1,6 @@
 package yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.enums
 
-
+@Deprecated("RangePickerView is no more valid. Please replace it with ScopePikerView.")
 enum class TouchMode {
     TOUCH_MODE_IDLE,
     TOUCH_MODE_DOWN,
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/CalculationsHelper.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/CalculationsHelper.kt
new file mode 100644
index 0000000..d7212a8
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/CalculationsHelper.kt
@@ -0,0 +1,29 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.util
+
+
+import kotlin.math.abs
+
+
+class CalculationsHelper {
+  var desiredCenterOfRect: Float = 0f
+  var startingCenterOfRect: Float = 0f
+
+  var widthOfDesiredRect: Float = 0f
+  var widthOfStartingRect: Float = 0f
+
+  var deltaWidth: Float = 0f
+  var deltaCenter: Float = 0f
+
+  fun calculateOnDirectionChange(): CalculationsHelper {
+    return this.apply {
+      deltaWidth = widthOfDesiredRect - widthOfStartingRect
+      deltaCenter = abs(desiredCenterOfRect - startingCenterOfRect)
+    }
+  }
+
+  fun calculateWidthChanges(lastCenterAfterMove: Float): Float {
+    return with(deltaCenter - lastCenterAfterMove) {
+      if (this != 0f) (this * deltaWidth) / deltaCenter else deltaCenter
+    }
+  }
+}
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/Dimension.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/Dimension.kt
new file mode 100644
index 0000000..22a17da
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/Dimension.kt
@@ -0,0 +1,12 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.util
+
+
+interface Dimension {
+  fun toDp(dp: Float): Float
+  fun toSp(sp: Float): Float
+
+  fun getMinWidthValue(): Int
+  fun getMaxWidthValue(): Int
+  fun getScreenHeight(): Int
+  fun getScreenWidth(): Int
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/DisplayUtils.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/DisplayUtils.kt
index a782768..9dd4590 100644
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/DisplayUtils.kt
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/DisplayUtils.kt
@@ -1,68 +1,50 @@
 package yaroslav.ovdiienko.idivision.rangepickerview.util
 
 import android.util.DisplayMetrics
+import android.util.TypedValue
 import android.view.WindowManager
-
-
-class DisplayUtils(private val windowManager: WindowManager) {
-    private val displayMetrics: DisplayMetrics = DisplayMetrics()
-
-    init {
-        windowManager.defaultDisplay.getMetrics(displayMetrics)
-    }
-
-    fun convertDpToPx(dp: Int): Int {
-        val scale = displayMetrics.density
-        return (dp * scale + 0.5f).toInt()
-    }
-
-    fun convertDpToPxFloat(dp: Float): Int {
-        val scale = displayMetrics.density
-        return (dp * scale + 0.5f).toInt()
-    }
-
-    fun convertPxToDp(px: Int): Int {
-        val scale = displayMetrics.density
-        return (px / scale + 0.5f).toInt()
-    }
-
-    fun convertSpToPx(sp: Int): Int {
-        val scale = displayMetrics.scaledDensity
-        return (sp * scale + 0.5f).toInt()
-    }
-
-    fun convertPxToSp(px: Int): Int {
-        val scale = displayMetrics.scaledDensity
-        return (px / scale + 0.5f).toInt()
-    }
-
-    fun getMinWidthValue(): Int {
-        val display = windowManager.defaultDisplay
-        val metrics = DisplayMetrics()
-        display.getMetrics(metrics)
-        val heightPixels = metrics.heightPixels
-        val widthPixels = metrics.widthPixels
-        return Math.min(heightPixels, widthPixels)
-    }
-
-    fun getMaxWidthValue(): Int {
-        val display = windowManager.defaultDisplay
-        val metrics = DisplayMetrics()
-        display.getMetrics(metrics)
-        return Math.max(metrics.heightPixels, metrics.widthPixels)
-    }
-
-    fun getHeightActivity(): Int {
-        val display = windowManager.defaultDisplay
-        val metrics = DisplayMetrics()
-        display.getMetrics(metrics)
-        return metrics.heightPixels
-    }
-
-    fun getWidthActivity(): Int {
-        val display = windowManager.defaultDisplay
-        val metrics = DisplayMetrics()
-        display.getMetrics(metrics)
-        return metrics.widthPixels
-    }
+import kotlin.math.max
+import kotlin.math.min
+
+
+class DisplayUtils(private val windowManager: WindowManager) : Dimension {
+  private val displayMetrics: DisplayMetrics = DisplayMetrics()
+
+  init {
+    windowManager.defaultDisplay.getMetrics(displayMetrics)
+  }
+
+  override fun toDp(dp: Float) = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, displayMetrics)
+
+  override fun toSp(sp: Float) = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, sp, displayMetrics)
+
+  override fun getMinWidthValue(): Int {
+    val display = windowManager.defaultDisplay
+    val metrics = DisplayMetrics()
+    display.getMetrics(metrics)
+    val heightPixels = metrics.heightPixels
+    val widthPixels = metrics.widthPixels
+    return min(heightPixels, widthPixels)
+  }
+
+  override fun getMaxWidthValue(): Int {
+    val display = windowManager.defaultDisplay
+    val metrics = DisplayMetrics()
+    display.getMetrics(metrics)
+    return max(metrics.heightPixels, metrics.widthPixels)
+  }
+
+  override fun getScreenHeight(): Int {
+    val display = windowManager.defaultDisplay
+    val metrics = DisplayMetrics()
+    display.getMetrics(metrics)
+    return metrics.heightPixels
+  }
+
+  override fun getScreenWidth(): Int {
+    val display = windowManager.defaultDisplay
+    val metrics = DisplayMetrics()
+    display.getMetrics(metrics)
+    return metrics.widthPixels
+  }
 }
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/TouchAssistant.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/TouchAssistant.kt
new file mode 100644
index 0000000..8257825
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/TouchAssistant.kt
@@ -0,0 +1,7 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.util
+
+
+@Deprecated("Replaced by touch provider")
+class TouchAssistant {
+  // TODO: add touch handling
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/exceptions/MaxOptionCharactersSizeException.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/exceptions/MaxOptionCharactersSizeException.kt
new file mode 100644
index 0000000..bd3fd58
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/exceptions/MaxOptionCharactersSizeException.kt
@@ -0,0 +1,7 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.util.exceptions
+
+
+class MaxOptionCharactersSizeException : RuntimeException {
+  constructor(message: String) : super(message)
+  constructor(error: Throwable) : super(error)
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/exceptions/MaxOptionsSizeException.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/exceptions/MaxOptionsSizeException.kt
new file mode 100644
index 0000000..b391dd2
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/exceptions/MaxOptionsSizeException.kt
@@ -0,0 +1,7 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.util.exceptions
+
+
+class MaxOptionsSizeException : RuntimeException {
+  constructor(message: String) : super(message)
+  constructor(error: Throwable) : super(error)
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/AndroidExtensions.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/AndroidExtensions.kt
new file mode 100644
index 0000000..525905c
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/AndroidExtensions.kt
@@ -0,0 +1,41 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.util.extension
+
+import android.content.Context
+import android.content.res.Resources
+import android.graphics.Typeface
+import android.os.Build
+import android.util.Log
+import androidx.core.content.res.ResourcesCompat
+import yaroslav.ovdiienko.idivision.rangepickerview.BuildConfig
+
+
+internal fun buildVersionGE(version: Int): Boolean = Build.VERSION.SDK_INT >= version
+
+internal fun Context.getFont(fontResId: Int): Typeface? {
+  return try {
+    if (buildVersionGE(Build.VERSION_CODES.O)) {
+      resources.getFont(fontResId)
+    } else {
+      ResourcesCompat.getFont(this, fontResId)
+    }
+  } catch (e: Exception) {
+    val font = Typeface.createFromAsset(assets, "display_regular.otf")
+    when (e) {
+      is Resources.NotFoundException,
+      is NullPointerException -> font
+      else -> font
+    }
+  }
+}
+
+internal fun Any.log(isDebug: Boolean = true, tag: String = "SPV/Log", msg: () -> String) {
+  if (BuildConfig.DEBUG) Log.d(tag, msg.invoke()) else if (isDebug) Log.i(tag, msg.invoke())
+}
+
+internal fun Any.debugAction(action: () -> Unit) {
+  if (BuildConfig.DEBUG) action.invoke()
+}
+
+internal fun Any.debugDraw(action: () -> Unit) {
+  if (BuildConfig.DEBUG) action.invoke()
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/NativeExtensions.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/NativeExtensions.kt
index 4d0ca78..c3fc4c8 100644
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/NativeExtensions.kt
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/NativeExtensions.kt
@@ -5,30 +5,21 @@ import android.animation.AnimatorSet
 
 
 fun AnimatorSet.addAnimationEndListener(block: () -> Unit) {
-    this.addListener(object : Animator.AnimatorListener {
-        override fun onAnimationRepeat(animation: Animator?) {
+  this.addListener(object : Animator.AnimatorListener {
+    override fun onAnimationRepeat(animation: Animator?) {
 
-        }
+    }
 
-        override fun onAnimationEnd(animation: Animator?, isReverse: Boolean) {
-            super.onAnimationEnd(animation, isReverse)
+    override fun onAnimationEnd(animation: Animator?) {
+      block.invoke()
+    }
 
-        }
+    override fun onAnimationCancel(animation: Animator?) {
 
-        override fun onAnimationEnd(animation: Animator?) {
-            block.invoke()
-        }
+    }
 
-        override fun onAnimationCancel(animation: Animator?) {
+    override fun onAnimationStart(animation: Animator?) {
 
-        }
-
-        override fun onAnimationStart(animation: Animator?, isReverse: Boolean) {
-            super.onAnimationStart(animation, isReverse)
-        }
-
-        override fun onAnimationStart(animation: Animator?) {
-
-        }
-    })
+    }
+  })
 }
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/RectExtensions.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/RectExtensions.kt
new file mode 100644
index 0000000..8731d8a
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/RectExtensions.kt
@@ -0,0 +1,29 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.util.extension
+
+import android.graphics.Rect
+import android.graphics.RectF
+
+
+internal fun RectF.update(
+  left: Float = this.left,
+  top: Float = this.top,
+  right: Float = this.right,
+  bottom: Float = this.bottom
+) {
+  this.left = left
+  this.top = top
+  this.right = right
+  this.bottom = bottom
+}
+
+internal fun Rect.update(
+  left: Int = this.left,
+  top: Int = this.top,
+  right: Int = this.right,
+  bottom: Int = this.bottom
+) {
+  this.left = left
+  this.top = top
+  this.right = right
+  this.bottom = bottom
+}
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/ViewExtensions.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/ViewExtensions.kt
new file mode 100644
index 0000000..01d8a6f
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/extension/ViewExtensions.kt
@@ -0,0 +1,9 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.util.extension
+
+
+import android.view.View
+
+
+internal fun View.requestDisallowInterceptTouchEvent() {
+  parent.requestDisallowInterceptTouchEvent(true)
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/view/AttributeSetParser.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/view/AttributeSetParser.kt
index d2a7995..9db6bdc 100644
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/view/AttributeSetParser.kt
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/view/AttributeSetParser.kt
@@ -11,123 +11,123 @@ import yaroslav.ovdiienko.idivision.rangepickerview.R
 import yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.RangePickerView
 import yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.RangePickerView.Companion.DEFAULT_TEXT_SIZE
 
-
+@Deprecated("RangePickerView is no more valid. Please replace it with ScopePikerView.")
 class AttributeSetParser(private val context: Context, attributeSet: AttributeSet?) {
-    private val displayMetrics = context.resources.displayMetrics
-
-    private val attributes: TypedArray? = attributeSet?.let {
-        context.obtainStyledAttributes(it, R.styleable.RangePickerView)
-    }
-
-    private val defaultBackgroundSelectedTint: Int by lazy {
-        ContextCompat.getColor(context, R.color.colorBlueSelectedPicker)
-    }
-    private val defaultTextColorOnSurface: Int by lazy {
-        ContextCompat.getColor(context, R.color.colorTextBlack)
-    }
-    private val defaultTextColorOnSelected: Int by lazy {
-        ContextCompat.getColor(context, R.color.colorTextWhite)
-    }
-
-    private val defaultBackgroundStripTint: Int by lazy {
-        ContextCompat.getColor(context, R.color.colorGreyBgPiker)
-    }
-
-    private val defaultStrokeWidth: Float by lazy {
-        TypedValue.applyDimension(
-            TypedValue.COMPLEX_UNIT_DIP,
-            RangePickerView.DEFAULT_STROKE_WIDTH.toFloat(),
-            displayMetrics
-        )
-    }
-
-    private val defaultCornerRadius: Float by lazy {
-        TypedValue.applyDimension(
-            TypedValue.COMPLEX_UNIT_DIP,
-            RangePickerView.DEFAULT_CORNER_RADIUS.toFloat(),
-            displayMetrics
-        )
-    }
-
-    private val defaultExtraPadding: Float by lazy {
-        TypedValue.applyDimension(
-            TypedValue.COMPLEX_UNIT_DIP,
-            RangePickerView.DEFAULT_EXTRA_PADDING.toFloat(),
-            displayMetrics
-        )
-    }
-
-    private val defaultTextSize: Float by lazy {
-        TypedValue.applyDimension(
-            TypedValue.COMPLEX_UNIT_SP,
-            DEFAULT_TEXT_SIZE.toFloat(),
-            displayMetrics
-        )
+  private val displayMetrics = context.resources.displayMetrics
+
+  private val attributes: TypedArray? = attributeSet?.let {
+    context.obtainStyledAttributes(it, R.styleable.RangePickerView)
+  }
+
+  private val defaultBackgroundSelectedTint: Int by lazy {
+    ContextCompat.getColor(context, R.color.colorBlueSelectedPicker)
+  }
+  private val defaultTextColorOnSurface: Int by lazy {
+    ContextCompat.getColor(context, R.color.colorTextBlack)
+  }
+  private val defaultTextColorOnSelected: Int by lazy {
+    ContextCompat.getColor(context, R.color.colorTextWhite)
+  }
+
+  private val defaultBackgroundStripTint: Int by lazy {
+    ContextCompat.getColor(context, R.color.colorGreyBgPiker)
+  }
+
+  private val defaultStrokeWidth: Float by lazy {
+    TypedValue.applyDimension(
+      TypedValue.COMPLEX_UNIT_DIP,
+      RangePickerView.DEFAULT_STROKE_WIDTH.toFloat(),
+      displayMetrics
+    )
+  }
+
+  private val defaultCornerRadius: Float by lazy {
+    TypedValue.applyDimension(
+      TypedValue.COMPLEX_UNIT_DIP,
+      RangePickerView.DEFAULT_CORNER_RADIUS.toFloat(),
+      displayMetrics
+    )
+  }
+
+  private val defaultExtraPadding: Float by lazy {
+    TypedValue.applyDimension(
+      TypedValue.COMPLEX_UNIT_DIP,
+      RangePickerView.DEFAULT_EXTRA_PADDING.toFloat(),
+      displayMetrics
+    )
+  }
+
+  private val defaultTextSize: Float by lazy {
+    TypedValue.applyDimension(
+      TypedValue.COMPLEX_UNIT_SP,
+      DEFAULT_TEXT_SIZE.toFloat(),
+      displayMetrics
+    )
+  }
+
+  private val defaultTextFont: Int by lazy {
+    R.font.display_regular
+  }
+
+  fun getBackgroundSelectedTint(): Int {
+    return parseColorRes(
+      R.styleable.RangePickerView_backgroundSelectedTint,
+      defaultBackgroundSelectedTint
+    )
+  }
+
+  fun getBackgroundStripTint(): Int {
+    return parseColorRes(
+      R.styleable.RangePickerView_backgroundStripTint,
+      defaultBackgroundStripTint
+    )
+  }
+
+  fun getTextColorOnSurface(): Int {
+    return parseColorRes(
+      R.styleable.RangePickerView_textColorOnSurface,
+      defaultTextColorOnSurface
+    )
+  }
+
+  fun getTextColorOnSelected(): Int {
+    return parseColorRes(
+      R.styleable.RangePickerView_textColorOnSelected,
+      defaultTextColorOnSelected
+    )
+  }
+
+  fun getStripThickness() =
+    parseDimensionRes(R.styleable.RangePickerView_stripThickness, defaultStrokeWidth)
+
+  fun getTextSize() =
+    parseDimensionRes(R.styleable.RangePickerView_android_textSize, defaultTextSize)
+
+  fun getCornerRadius() =
+    parseDimensionRes(R.styleable.RangePickerView_cornerRadius, defaultCornerRadius)
+
+  fun getExtraPadding() =
+    parseDimensionRes(R.styleable.RangePickerView_extraPadding, defaultExtraPadding)
+
+  fun getFontRes(): Typeface? {
+    attributes?.let {
+      val fontResId = it.getResourceId(
+        R.styleable.RangePickerView_android_fontFamily,
+        defaultTextFont
+      )
+      return parseFontRes(fontResId)
     }
 
-    private val defaultTextFont: Int by lazy {
-        R.font.display_regular
-    }
-
-    fun getBackgroundSelectedTint(): Int {
-        return parseColorRes(
-            R.styleable.RangePickerView_backgroundSelectedTint,
-            defaultBackgroundSelectedTint
-        )
-    }
-
-    fun getBackgroundStripTint(): Int {
-        return parseColorRes(
-            R.styleable.RangePickerView_backgroundStripTint,
-            defaultBackgroundStripTint
-        )
-    }
-
-    fun getTextColorOnSurface(): Int {
-        return parseColorRes(
-            R.styleable.RangePickerView_textColorOnSurface,
-            defaultTextColorOnSurface
-        )
-    }
-
-    fun getTextColorOnSelected(): Int {
-        return parseColorRes(
-            R.styleable.RangePickerView_textColorOnSelected,
-            defaultTextColorOnSelected
-        )
-    }
-
-    fun getStripThickness() =
-        parseDimensionRes(R.styleable.RangePickerView_stripThickness, defaultStrokeWidth)
-
-    fun getTextSize() =
-        parseDimensionRes(R.styleable.RangePickerView_android_textSize, defaultTextSize)
-
-    fun getCornerRadius() =
-        parseDimensionRes(R.styleable.RangePickerView_cornerRadius, defaultCornerRadius)
-
-    fun getExtraPadding() =
-        parseDimensionRes(R.styleable.RangePickerView_extraPadding, defaultExtraPadding)
-
-    fun getFontRes(): Typeface? {
-        attributes?.let {
-            val fontResId = it.getResourceId(
-                R.styleable.RangePickerView_android_fontFamily,
-                defaultTextFont
-            )
-            return parseFontRes(fontResId)
-        }
-
-        return parseFontRes(defaultTextFont)
-    }
+    return parseFontRes(defaultTextFont)
+  }
 
-    private fun parseColorRes(styleableResId: Int, defaultDimension: Int) =
-        attributes?.getColor(styleableResId, defaultDimension) ?: defaultDimension
+  private fun parseColorRes(styleableResId: Int, defaultDimension: Int) =
+    attributes?.getColor(styleableResId, defaultDimension) ?: defaultDimension
 
-    private fun parseDimensionRes(styleableResId: Int, defaultDimension: Float) =
-        attributes?.getDimension(styleableResId, defaultDimension) ?: defaultDimension
+  private fun parseDimensionRes(styleableResId: Int, defaultDimension: Float) =
+    attributes?.getDimension(styleableResId, defaultDimension) ?: defaultDimension
 
-    private fun parseFontRes(fontResId: Int) = ResourcesCompat.getFont(context, fontResId)
+  private fun parseFontRes(fontResId: Int) = ResourcesCompat.getFont(context, fontResId)
 
-    fun recycle() = attributes?.recycle()
+  fun recycle() = attributes?.recycle()
 }
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/view/IndexContainer.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/view/IndexContainer.kt
index 2d6f174..8b99ce7 100644
--- a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/view/IndexContainer.kt
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/view/IndexContainer.kt
@@ -2,15 +2,15 @@ package yaroslav.ovdiienko.idivision.rangepickerview.util.view
 
 import yaroslav.ovdiienko.idivision.rangepickerview.rangepicker.model.enums.OptionsState
 
-
+@Deprecated("RangePickerView is no more valid. Please replace it with ScopePikerView.")
 class IndexContainer {
-    var firstPreviousIndex: Int = -1
-    var secondPreviousIndex: Int = -1
+  var firstPreviousIndex: Int = -1
+  var secondPreviousIndex: Int = -1
 
-    var firstNewIndex: Int = -1
-    var secondNewIndex: Int = -1
+  var firstNewIndex: Int = -1
+  var secondNewIndex: Int = -1
 
-    var firstDefaultIndex: Int = -1
-    var secondDefaultIndex: Int = -1
-    var defaultOptionsState: OptionsState = OptionsState.NONE
+  var firstDefaultIndex: Int = -1
+  var secondDefaultIndex: Int = -1
+  var defaultOptionsState: OptionsState = OptionsState.NONE
 }
\ No newline at end of file
diff --git a/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/view/ViewAttributes.kt b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/view/ViewAttributes.kt
new file mode 100644
index 0000000..979da18
--- /dev/null
+++ b/rangepickerview/src/main/java/yaroslav/ovdiienko/idivision/rangepickerview/util/view/ViewAttributes.kt
@@ -0,0 +1,158 @@
+package yaroslav.ovdiienko.idivision.rangepickerview.util.view
+
+import android.content.Context
+import android.content.res.TypedArray
+import android.graphics.Typeface
+import android.util.AttributeSet
+import androidx.core.content.ContextCompat
+import yaroslav.ovdiienko.idivision.rangepickerview.R
+import yaroslav.ovdiienko.idivision.rangepickerview.util.Dimension
+import yaroslav.ovdiienko.idivision.rangepickerview.util.extension.getFont
+
+
+class ViewAttributes {
+  var pointerBackgroundColor: Int = 0
+    private set
+
+  var stripBackgroundColor: Int = 0
+    private set
+
+  var textColorOnPoint: Int = 0
+    private set
+
+  var textColorOnSurface: Int = 0
+    private set
+
+  var pointerCornerRadius: Float = 0f
+    private set
+
+  var stripThickness: Float = 0f
+    private set
+
+  var textSize: Float = 0f
+    private set
+
+  var fontFamily: Typeface? = null
+    private set
+
+  fun applyValues(newValues: Parser) {
+    newValues.parse(this)
+  }
+
+  class Parser(
+    private val context: Context,
+    private val dimension: Dimension,
+    private val attrs: AttributeSet?
+  ) {
+    private val typedAttributes: TypedArray? =
+      context.obtainStyledAttributes(attrs, R.styleable.DuoOptionView)
+
+    private val defaultPointerBackgroundColor: Int by lazy {
+      ContextCompat.getColor(context, R.color.colorBlueSelectedPicker)
+    }
+    private val defaultTextColorOnSurface: Int by lazy {
+      ContextCompat.getColor(context, R.color.colorTextBlack)
+    }
+    private val defaultTextColorOnPoint: Int by lazy {
+      ContextCompat.getColor(context, R.color.colorTextWhite)
+    }
+
+    private val defaultStripBackgroundColor: Int by lazy {
+      ContextCompat.getColor(context, R.color.colorGreyBgPiker)
+    }
+
+    private val defaultStripThickness: Float by lazy { dimension.toDp(DEFAULT_STROKE_WIDTH) }
+
+    private val defaultPointerCornerRadius: Float by lazy { dimension.toDp(DEFAULT_CORNER_RADIUS) }
+
+    private val defaultTextSize: Float by lazy { dimension.toSp(DEFAULT_TEXT_SIZE) }
+
+    private val defaultTextFont: Int by lazy { R.font.display_regular }
+
+    internal fun parse(viewAttributes: ViewAttributes) {
+      viewAttributes.apply {
+        pointerBackgroundColor = getPointerBackgroundColor()
+        stripBackgroundColor = getStripBackgroundColor()
+        textColorOnPoint = getTextColorOnPoint()
+        textColorOnSurface = getTextColorOnSurface()
+        pointerCornerRadius = getPointerCornerRadius()
+        stripThickness = getStripThickness()
+        textSize = getTextSize()
+        fontFamily = getFontRes()
+      }
+
+      typedAttributes?.recycle()
+    }
+
+    private fun getPointerBackgroundColor(): Int {
+      return parseColorRes(
+        R.styleable.DuoOptionView_pointerBackgroundColor,
+        defaultPointerBackgroundColor
+      )
+    }
+
+    private fun getStripBackgroundColor(): Int {
+      return parseColorRes(
+        R.styleable.DuoOptionView_stripBackgroundColor,
+        defaultStripBackgroundColor
+      )
+    }
+
+    private fun getTextColorOnPoint(): Int {
+      return parseColorRes(
+        R.styleable.DuoOptionView_textColorOnPoint,
+        defaultTextColorOnPoint
+      )
+    }
+
+    private fun getTextColorOnSurface(): Int {
+      return parseColorRes(
+        R.styleable.DuoOptionView_textColorOnSurface,
+        defaultTextColorOnSurface
+      )
+    }
+
+    private fun getPointerCornerRadius() =
+      parseDimensionRes(
+        R.styleable.DuoOptionView_pointerCornerRadius,
+        defaultPointerCornerRadius
+      )
+
+    private fun getStripThickness() =
+      parseDimensionRes(R.styleable.DuoOptionView_stripThickness, defaultStripThickness)
+
+    private fun getTextSize() =
+      parseDimensionRes(R.styleable.RangePickerView_android_textSize, defaultTextSize)
+
+    private fun getFontRes(): Typeface? {
+      typedAttributes?.let {
+        val fontResId = it.getResourceId(
+          R.styleable.RangePickerView_android_fontFamily,
+          defaultTextFont
+        )
+        return context.getFont(fontResId)
+      }
+
+      return context.getFont(defaultTextFont)
+    }
+
+    private fun parseColorRes(styleableResId: Int, defaultDimension: Int) =
+      typedAttributes?.getColor(styleableResId, defaultDimension) ?: defaultDimension
+
+    private fun parseDimensionRes(styleableResId: Int, defaultDimension: Float) =
+      typedAttributes?.getDimension(styleableResId, defaultDimension) ?: defaultDimension
+
+    companion object {
+      const val DEFAULT_MIN_HEIGHT = 46f
+      const val DEFAULT_CORNER_RADIUS = 8f
+      const val DEFAULT_STROKE_WIDTH = 32f
+      const val DEFAULT_TEXT_SIZE = 12f
+    }
+  }
+
+  /* planned in 1.1.0 */
+  class AttributesBuilder(
+    private val context: Context,
+    private val dimension: Dimension
+  ) {}
+}
\ No newline at end of file
diff --git a/rangepickerview/src/main/res/values/attrs.xml b/rangepickerview/src/main/res/values/attrs.xml
index 124f430..d26559f 100644
--- a/rangepickerview/src/main/res/values/attrs.xml
+++ b/rangepickerview/src/main/res/values/attrs.xml
@@ -1,14 +1,32 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+    <attr name="textColorOnSurface" format="color" />
+    <attr name="stripThickness" format="dimension" />
+    <attr name="pointerBackgroundColor" format="color" />
+    <attr name="stripBackgroundColor" format="color" />
+    <attr name="textColorOnPoint" format="color" />
+    <attr name="pointerCornerRadius" format="dimension" />
+
     <declare-styleable name="RangePickerView">
         <attr name="backgroundSelectedTint" format="color" />
         <attr name="backgroundStripTint" format="color" />
         <attr name="textColorOnSelected" format="color" />
-        <attr name="textColorOnSurface" format="color" />
+        <attr name="textColorOnSurface" />
         <attr name="cornerRadius" format="dimension" />
-        <attr name="stripThickness" format="dimension" />
+        <attr name="stripThickness" />
         <attr name="extraPadding" format="dimension" />
         <attr name="android:textSize" />
         <attr name="android:fontFamily" />
     </declare-styleable>
+
+    <declare-styleable name="DuoOptionView">
+        <attr name="pointerBackgroundColor" />
+        <attr name="stripBackgroundColor" />
+        <attr name="textColorOnPoint" />
+        <attr name="textColorOnSurface" />
+        <attr name="pointerCornerRadius" />
+        <attr name="stripThickness" />
+        <attr name="android:textSize" />
+        <attr name="android:fontFamily" />
+    </declare-styleable>
 </resources>
\ No newline at end of file
diff --git a/rangepickerview/src/main/res/values/colors.xml b/rangepickerview/src/main/res/values/colors.xml
index 70d936c..f98e2f0 100644
--- a/rangepickerview/src/main/res/values/colors.xml
+++ b/rangepickerview/src/main/res/values/colors.xml
@@ -8,5 +8,4 @@
 
     <color name="colorGreyBgPiker">#eaeeee</color>
     <color name="colorBlueSelectedPicker">#00caf2</color>
-    <color name="colorBlueBgPickerTransparent">#2800CAF2</color>
 </resources>
diff --git a/rangepickerview/src/main/res/values/styles.xml b/rangepickerview/src/main/res/values/styles.xml
new file mode 100644
index 0000000..0323fbb
--- /dev/null
+++ b/rangepickerview/src/main/res/values/styles.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- TODO: add default style -->
+</resources>
\ No newline at end of file