diff --git a/app/src/main/kotlin/com/simplemobiletools/keyboard/views/MyKeyboardView.kt b/app/src/main/kotlin/com/simplemobiletools/keyboard/views/MyKeyboardView.kt
index 215eefe..daed01c 100644
--- a/app/src/main/kotlin/com/simplemobiletools/keyboard/views/MyKeyboardView.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/keyboard/views/MyKeyboardView.kt
@@ -22,8 +22,9 @@ import com.simplemobiletools.keyboard.helpers.*
 import kotlinx.android.synthetic.main.keyboard_popup_keyboard.view.*
 import java.util.*
 
-class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int = R.attr.keyboardViewStyle, defStyleRes: Int = 0) :
-    View(context, attrs, defStyleAttr, defStyleRes) {
+@SuppressLint("UseCompatLoadingForDrawables")
+class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: AttributeSet?, defStyleRes: Int = 0) :
+    View(context, attrs, defStyleRes) {
 
     interface OnKeyboardActionListener {
         /**
@@ -62,7 +63,6 @@ class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: Attribut
 
     private var mLabelTextSize = 0
     private var mKeyTextSize = 0
-    private val mBackgroundDimAmount: Float
 
     private var mTextColor = 0
     private var mBackgroundColor = 0
@@ -192,7 +192,7 @@ class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: Attribut
     }
 
     init {
-        val attributes = context.theme.obtainStyledAttributes(attrs, R.styleable.MyKeyboardView, defStyleAttr, defStyleRes)
+        val attributes = context.obtainStyledAttributes(attrs, R.styleable.MyKeyboardView, 0, defStyleRes)
         val inflate = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
         val keyTextSize = 0
         val n = attributes.indexCount
@@ -201,24 +201,23 @@ class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: Attribut
             for (i in 0 until n) {
                 val attr = attributes.getIndex(i)
                 when (attr) {
-                    R.styleable.MyKeyboardView_keyBackground -> mKeyBackground = attributes.getDrawable(attr)
-                    R.styleable.MyKeyboardView_verticalCorrection -> mVerticalCorrection = attributes.getDimensionPixelOffset(attr, 0)
                     R.styleable.MyKeyboardView_keyTextSize -> mKeyTextSize = attributes.getDimensionPixelSize(attr, 18)
-                    R.styleable.MyKeyboardView_labelTextSize -> mLabelTextSize = attributes.getDimensionPixelSize(attr, 14)
-                    R.styleable.MyKeyboardView_popupLayout -> mPopupLayout = attributes.getResourceId(attr, 0)
                 }
             }
         } finally {
             attributes.recycle()
         }
 
+        mPopupLayout = R.layout.keyboard_popup_keyboard
+        mKeyBackground = resources.getDrawable(R.drawable.keyboard_key_selector, context.theme)
+        mVerticalCorrection = resources.getDimension(R.dimen.vertical_correction).toInt()
+        mLabelTextSize = resources.getDimension(R.dimen.label_text_size).toInt()
         mPreviewHeight = resources.getDimension(R.dimen.key_height).toInt()
         mSpaceMoveThreshold = resources.getDimension(R.dimen.medium_margin).toInt()
         mTextColor = context.config.textColor
         mBackgroundColor = context.config.backgroundColor
         mPrimaryColor = context.getAdjustedPrimaryColor()
 
-        mBackgroundDimAmount = 0.5f
         mPreviewPopup = PopupWindow(context)
         mPreviewText = inflate.inflate(resources.getLayout(R.layout.keyboard_key_preview), null) as TextView
         mPreviewTextSizeLarge = context.resources.getDimension(R.dimen.preview_text_size).toInt()
@@ -544,7 +543,7 @@ class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: Attribut
         mInvalidatedKey = null
         // Overlay a dark rectangle to dim the keyboard
         if (mMiniKeyboardOnScreen) {
-            paint.color = (mBackgroundDimAmount * 0xFF).toInt() shl 24
+            paint.color = Color.BLACK.adjustAlpha(0.3f)
             canvas.drawRect(0f, 0f, width.toFloat(), height.toFloat(), paint)
         }
 
diff --git a/app/src/main/res/drawable/minikeyboard_background.xml b/app/src/main/res/drawable/minikeyboard_background.xml
index da876f7..fd7c32c 100644
--- a/app/src/main/res/drawable/minikeyboard_background.xml
+++ b/app/src/main/res/drawable/minikeyboard_background.xml
@@ -3,7 +3,7 @@
     <item android:id="@+id/button_background_shape">
         <shape android:shape="rectangle">
             <solid android:color="@color/theme_dark_background_color" />
-            <corners android:radius="4dp" />
+            <corners android:radius="@dimen/small_margin" />
         </shape>
     </item>
 </layer-list>
diff --git a/app/src/main/res/values/attrs.xml b/app/src/main/res/values/attrs.xml
index 4595c17..935c258 100644
--- a/app/src/main/res/values/attrs.xml
+++ b/app/src/main/res/values/attrs.xml
@@ -5,18 +5,8 @@
     </declare-styleable>
 
     <declare-styleable name="MyKeyboardView">
-        <attr name="keyboardViewStyle" format="reference" />
-        <!-- Image for the key. This image needs to be a StateListDrawable, with the following possible states:
-             normal, pressed, checkable, checkable+pressed, checkable+checked, checkable+checked+pressed. -->
-        <attr name="keyBackground" format="reference" />
         <!-- Size of the text for character keys. -->
         <attr name="keyTextSize" format="dimension" />
-        <!-- Size of the text for custom keys with some text and no icon. -->
-        <attr name="labelTextSize" format="dimension" />
-        <!-- Amount to offset the touch Y coordinate by, for bias correction. -->
-        <attr name="verticalCorrection" format="dimension" />
-        <!-- Layout resource for popup keyboards. -->
-        <attr name="popupLayout" format="reference" />
     </declare-styleable>
 
     <declare-styleable name="MyKeyboard">
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index 171eb85..0164e9b 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -3,7 +3,9 @@
     <dimen name="top_small_number_margin_width">12dp</dimen>
     <dimen name="top_small_number_margin_height">18dp</dimen>
     <dimen name="key_height">60dp</dimen>
+    <dimen name="vertical_correction">-10dp</dimen>
 
     <dimen name="keyboard_text_size">22sp</dimen>
     <dimen name="preview_text_size">26sp</dimen>
+    <dimen name="label_text_size">16sp</dimen>      <!-- text size used at keys with longer labels, like "123" -->
 </resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 8b15a01..a944923 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -7,11 +7,7 @@
     </style>
 
     <style name="Widget.KeyboardView" parent="Widget">
-        <item name="keyBackground">@drawable/keyboard_key_selector</item>
         <item name="keyTextSize">@dimen/keyboard_text_size</item>
-        <item name="labelTextSize">16sp</item>
-        <item name="popupLayout">@layout/keyboard_popup_keyboard</item>
-        <item name="verticalCorrection">-10dp</item>
     </style>
 
     <style name="Widget.KeyboardViewPopup" parent="Widget.KeyboardView">