diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index a0de2a152..6e5389ed9 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -7,7 +7,7 @@
         <option name="testRunner" value="GRADLE" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleJvm" value="Embedded JDK" />
+        <option name="gradleJvm" value="Android Studio default JDK" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
diff --git a/app/src/main/java/org/koitharu/kotatsu/base/ui/BaseActivity.kt b/app/src/main/java/org/koitharu/kotatsu/base/ui/BaseActivity.kt
index 54cae9713..2fcfeac76 100644
--- a/app/src/main/java/org/koitharu/kotatsu/base/ui/BaseActivity.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/base/ui/BaseActivity.kt
@@ -26,7 +26,8 @@ import org.koitharu.kotatsu.base.ui.util.WindowInsetsDelegate
 import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
 import org.koitharu.kotatsu.core.prefs.AppSettings
 
-abstract class BaseActivity<B : ViewBinding> : AppCompatActivity(),
+abstract class BaseActivity<B : ViewBinding> :
+	AppCompatActivity(),
 	WindowInsetsDelegate.WindowInsetsListener {
 
 	protected lateinit var binding: B
@@ -123,4 +124,4 @@ abstract class BaseActivity<B : ViewBinding> : AppCompatActivity(),
 			super.onBackPressed()
 		}
 	}
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/base/ui/dialog/StorageSelectDialog.kt b/app/src/main/java/org/koitharu/kotatsu/base/ui/dialog/StorageSelectDialog.kt
index 3c048aa54..58e353ca8 100644
--- a/app/src/main/java/org/koitharu/kotatsu/base/ui/dialog/StorageSelectDialog.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/base/ui/dialog/StorageSelectDialog.kt
@@ -2,6 +2,7 @@ package org.koitharu.kotatsu.base.ui.dialog
 
 import android.content.Context
 import android.content.DialogInterface
+import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.BaseAdapter
@@ -12,7 +13,6 @@ import kotlinx.coroutines.runBlocking
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.databinding.ItemStorageBinding
 import org.koitharu.kotatsu.local.data.LocalStorageManager
-import org.koitharu.kotatsu.utils.ext.inflate
 import java.io.File
 
 class StorageSelectDialog private constructor(private val delegate: AlertDialog) :
@@ -66,7 +66,7 @@ class StorageSelectDialog private constructor(private val delegate: AlertDialog)
 		val volumes = getAvailableVolumes(storageManager)
 
 		override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
-			val view = convertView ?: parent.inflate(R.layout.item_storage)
+			val view = convertView ?: LayoutInflater.from(parent.context).inflate(R.layout.item_storage, parent, false)
 			val binding = (view.tag as? ItemStorageBinding) ?: ItemStorageBinding.bind(view).also {
 				view.tag = it
 			}
diff --git a/app/src/main/java/org/koitharu/kotatsu/base/ui/widgets/ListItemTextView.kt b/app/src/main/java/org/koitharu/kotatsu/base/ui/widgets/ListItemTextView.kt
index 7004192ad..18d7262dc 100644
--- a/app/src/main/java/org/koitharu/kotatsu/base/ui/widgets/ListItemTextView.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/base/ui/widgets/ListItemTextView.kt
@@ -13,12 +13,12 @@ import android.graphics.drawable.shapes.RectShape
 import android.util.AttributeSet
 import androidx.annotation.AttrRes
 import androidx.appcompat.widget.AppCompatCheckedTextView
-import androidx.core.content.res.use
 import androidx.core.content.withStyledAttributes
 import com.google.android.material.ripple.RippleUtils
 import com.google.android.material.shape.MaterialShapeDrawable
 import com.google.android.material.shape.ShapeAppearanceModel
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.utils.ext.getThemeColorStateList
 
 @SuppressLint("RestrictedApi")
 class ListItemTextView @JvmOverloads constructor(
@@ -119,8 +119,7 @@ class ListItemTextView @JvmOverloads constructor(
 	}
 
 	private fun getRippleColorFallback(context: Context): ColorStateList {
-		return context.obtainStyledAttributes(intArrayOf(android.R.attr.colorControlHighlight)).use {
-			it.getColorStateList(0)
-		} ?: ColorStateList.valueOf(Color.TRANSPARENT)
+		return context.getThemeColorStateList(android.R.attr.colorControlHighlight)
+			?: ColorStateList.valueOf(Color.TRANSPARENT)
 	}
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt b/app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt
index de191e304..89cbc1aaf 100644
--- a/app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt
@@ -11,6 +11,10 @@ import androidx.collection.arraySetOf
 import androidx.core.content.edit
 import androidx.preference.PreferenceManager
 import com.google.android.material.color.DynamicColors
+import java.io.File
+import java.text.DateFormat
+import java.text.SimpleDateFormat
+import java.util.*
 import kotlinx.coroutines.channels.awaitClose
 import kotlinx.coroutines.channels.trySendBlocking
 import kotlinx.coroutines.flow.callbackFlow
@@ -19,10 +23,6 @@ import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.utils.ext.getEnumValue
 import org.koitharu.kotatsu.utils.ext.putEnumValue
 import org.koitharu.kotatsu.utils.ext.toUriOrNull
-import java.io.File
-import java.text.DateFormat
-import java.text.SimpleDateFormat
-import java.util.*
 
 class AppSettings(context: Context) {
 
@@ -281,4 +281,4 @@ class AppSettings(context: Context) {
 		private val isSamsung
 			get() = Build.MANUFACTURER.equals("samsung", ignoreCase = true)
 	}
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/details/ui/DetailsFragment.kt b/app/src/main/java/org/koitharu/kotatsu/details/ui/DetailsFragment.kt
index ab4ae21e1..df4fc2de9 100644
--- a/app/src/main/java/org/koitharu/kotatsu/details/ui/DetailsFragment.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/details/ui/DetailsFragment.kt
@@ -5,6 +5,7 @@ import android.os.Bundle
 import android.text.Spanned
 import android.text.method.LinkMovementMethod
 import android.view.*
+import androidx.appcompat.widget.PopupMenu
 import androidx.core.content.ContextCompat
 import androidx.core.graphics.Insets
 import androidx.core.net.toUri
@@ -224,14 +225,16 @@ class DetailsFragment :
 				if (viewModel.readingHistory.value == null) {
 					return false
 				}
-				v.showPopupMenu(R.menu.popup_read) {
-					when (it.itemId) {
+				val menu = PopupMenu(v.context, v)
+				menu.inflate(R.menu.popup_read)
+				menu.setOnMenuItemClickListener { menuItem ->
+					when (menuItem.itemId) {
 						R.id.action_read -> {
 							val branch = viewModel.selectedBranchValue
 							startActivity(
 								ReaderActivity.newIntent(
-									context = context ?: return@showPopupMenu false,
-									manga = viewModel.manga.value ?: return@showPopupMenu false,
+									context = context ?: return@setOnMenuItemClickListener false,
+									manga = viewModel.manga.value ?: return@setOnMenuItemClickListener false,
 									state = viewModel.chapters.value?.firstOrNull { c ->
 										c.chapter.branch == branch
 									}?.let { c ->
@@ -244,6 +247,7 @@ class DetailsFragment :
 						else -> false
 					}
 				}
+				menu.show()
 				return true
 			}
 			else -> return false
diff --git a/app/src/main/java/org/koitharu/kotatsu/favourites/ui/FavouritesContainerFragment.kt b/app/src/main/java/org/koitharu/kotatsu/favourites/ui/FavouritesContainerFragment.kt
index 9fc69a228..27ae2696d 100644
--- a/app/src/main/java/org/koitharu/kotatsu/favourites/ui/FavouritesContainerFragment.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/favourites/ui/FavouritesContainerFragment.kt
@@ -3,6 +3,7 @@ package org.koitharu.kotatsu.favourites.ui
 import android.os.Bundle
 import android.view.*
 import androidx.appcompat.view.ActionMode
+import androidx.appcompat.widget.PopupMenu
 import androidx.core.graphics.Insets
 import androidx.core.view.children
 import androidx.core.view.updateLayoutParams
@@ -10,7 +11,6 @@ import androidx.core.view.updatePadding
 import com.google.android.material.snackbar.Snackbar
 import com.google.android.material.tabs.TabLayout
 import com.google.android.material.tabs.TabLayoutMediator
-import java.util.*
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BaseFragment
@@ -25,7 +25,7 @@ import org.koitharu.kotatsu.main.ui.AppBarOwner
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
 import org.koitharu.kotatsu.utils.ext.measureHeight
-import org.koitharu.kotatsu.utils.ext.showPopupMenu
+import java.util.*
 
 class FavouritesContainerFragment :
 	BaseFragment<FragmentFavouritesBinding>(),
@@ -123,22 +123,24 @@ class FavouritesContainerFragment :
 
 	override fun onTabLongClick(tabView: View, category: FavouriteCategory): Boolean {
 		val menuRes = if (category.id == 0L) R.menu.popup_category_empty else R.menu.popup_category
-		tabView.showPopupMenu(menuRes, { menu ->
-			createOrderSubmenu(menu, category)
-		}) {
+		val menu = PopupMenu(tabView.context, tabView)
+		menu.inflate(menuRes)
+		createOrderSubmenu(menu.menu, category)
+		menu.setOnMenuItemClickListener {
 			when (it.itemId) {
 				R.id.action_remove -> editDelegate.deleteCategory(category)
 				R.id.action_rename -> editDelegate.renameCategory(category)
 				R.id.action_create -> editDelegate.createCategory()
-				R.id.action_order -> return@showPopupMenu false
+				R.id.action_order -> return@setOnMenuItemClickListener false
 				else -> {
 					val order = CategoriesActivity.SORT_ORDERS.getOrNull(it.order)
-						?: return@showPopupMenu false
+						?: return@setOnMenuItemClickListener false
 					viewModel.setCategoryOrder(category.id, order)
 				}
 			}
 			true
 		}
+		menu.show()
 		return true
 	}
 
diff --git a/app/src/main/java/org/koitharu/kotatsu/favourites/ui/categories/CategoriesActivity.kt b/app/src/main/java/org/koitharu/kotatsu/favourites/ui/categories/CategoriesActivity.kt
index c147351b0..9caeb87c8 100644
--- a/app/src/main/java/org/koitharu/kotatsu/favourites/ui/categories/CategoriesActivity.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/favourites/ui/categories/CategoriesActivity.kt
@@ -6,6 +6,7 @@ import android.os.Bundle
 import android.view.Menu
 import android.view.View
 import android.view.ViewGroup
+import androidx.appcompat.widget.PopupMenu
 import androidx.core.graphics.Insets
 import androidx.core.view.isVisible
 import androidx.core.view.updateLayoutParams
@@ -23,11 +24,12 @@ import org.koitharu.kotatsu.databinding.ActivityCategoriesBinding
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
 import org.koitharu.kotatsu.utils.ext.measureHeight
-import org.koitharu.kotatsu.utils.ext.showPopupMenu
 
-class CategoriesActivity : BaseActivity<ActivityCategoriesBinding>(),
+class CategoriesActivity :
+	BaseActivity<ActivityCategoriesBinding>(),
 	OnListItemClickListener<FavouriteCategory>,
-	View.OnClickListener, CategoriesEditDelegate.CategoriesEditCallback {
+	View.OnClickListener,
+	CategoriesEditDelegate.CategoriesEditCallback {
 
 	private val viewModel by viewModel<FavouritesCategoriesViewModel>()
 
@@ -58,26 +60,27 @@ class CategoriesActivity : BaseActivity<ActivityCategoriesBinding>(),
 	}
 
 	override fun onItemClick(item: FavouriteCategory, view: View) {
-		view.showPopupMenu(R.menu.popup_category, { menu ->
-			createOrderSubmenu(menu, item)
-		}) {
-			when (it.itemId) {
+		val menu = PopupMenu(view.context, view)
+		menu.inflate(R.menu.popup_category)
+		createOrderSubmenu(menu.menu, item)
+		menu.setOnMenuItemClickListener { menuItem ->
+			when (menuItem.itemId) {
 				R.id.action_remove -> editDelegate.deleteCategory(item)
 				R.id.action_rename -> editDelegate.renameCategory(item)
-				R.id.action_order -> return@showPopupMenu false
+				R.id.action_order -> return@setOnMenuItemClickListener false
 				else -> {
-					val order = SORT_ORDERS.getOrNull(it.order) ?: return@showPopupMenu false
+					val order = SORT_ORDERS.getOrNull(menuItem.order) ?: return@setOnMenuItemClickListener false
 					viewModel.setCategoryOrder(item.id, order)
 				}
 			}
 			true
 		}
+		menu.show()
 	}
 
 	override fun onItemLongClick(item: FavouriteCategory, view: View): Boolean {
-		reorderHelper.startDrag(
-			binding.recyclerView.findContainingViewHolder(view) ?: return false
-		)
+		val viewHolder = binding.recyclerView.findContainingViewHolder(view) ?: return false
+		reorderHelper.startDrag(viewHolder)
 		return true
 	}
 
@@ -90,7 +93,7 @@ class CategoriesActivity : BaseActivity<ActivityCategoriesBinding>(),
 		binding.recyclerView.updatePadding(
 			left = insets.left,
 			right = insets.right,
-			bottom = 2 * insets.bottom + binding.fabAdd.measureHeight()
+			bottom = 2 * insets.bottom + binding.fabAdd.measureHeight(),
 		)
 	}
 
diff --git a/app/src/main/java/org/koitharu/kotatsu/list/ui/ListModeSelectDialog.kt b/app/src/main/java/org/koitharu/kotatsu/list/ui/ListModeSelectDialog.kt
index 46dfaefd5..a7ae219e8 100644
--- a/app/src/main/java/org/koitharu/kotatsu/list/ui/ListModeSelectDialog.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/list/ui/ListModeSelectDialog.kt
@@ -43,7 +43,7 @@ class ListModeSelectDialog : AlertDialogFragment<DialogListModeBinding>(),
 		binding.textViewGridTitle.isVisible = mode == ListMode.GRID
 		binding.sliderGrid.isVisible = mode == ListMode.GRID
 
-		binding.sliderGrid.setLabelFormatter(IntPercentLabelFormatter())
+		binding.sliderGrid.setLabelFormatter(IntPercentLabelFormatter(view.context))
 		binding.sliderGrid.setValueRounded(settings.gridSize.toFloat())
 		binding.sliderGrid.addOnSliderTouchListener(this)
 
diff --git a/app/src/main/java/org/koitharu/kotatsu/list/ui/MangaSelectionDecoration.kt b/app/src/main/java/org/koitharu/kotatsu/list/ui/MangaSelectionDecoration.kt
index 939d5b256..106d141f4 100644
--- a/app/src/main/java/org/koitharu/kotatsu/list/ui/MangaSelectionDecoration.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/list/ui/MangaSelectionDecoration.kt
@@ -40,7 +40,7 @@ class MangaSelectionDecoration(context: Context) : AbstractSelectionItemDecorati
 
 	override fun getItemId(parent: RecyclerView, child: View): Long {
 		val holder = parent.getChildViewHolder(child) ?: return NO_ID
-		val item = holder.getItem<MangaItemModel>() ?: return NO_ID
+		val item = holder.getItem(MangaItemModel::class.java) ?: return NO_ID
 		return item.id
 	}
 
diff --git a/app/src/main/java/org/koitharu/kotatsu/reader/ui/pager/webtoon/WebtoonReaderFragment.kt b/app/src/main/java/org/koitharu/kotatsu/reader/ui/pager/webtoon/WebtoonReaderFragment.kt
index ddaa63b5e..5a9721124 100644
--- a/app/src/main/java/org/koitharu/kotatsu/reader/ui/pager/webtoon/WebtoonReaderFragment.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/reader/ui/pager/webtoon/WebtoonReaderFragment.kt
@@ -14,7 +14,7 @@ import org.koitharu.kotatsu.reader.ui.pager.BaseReaderAdapter
 import org.koitharu.kotatsu.reader.ui.pager.ReaderPage
 import org.koitharu.kotatsu.utils.ext.doOnCurrentItemChanged
 import org.koitharu.kotatsu.utils.ext.findCenterViewPosition
-import org.koitharu.kotatsu.utils.ext.firstItem
+import org.koitharu.kotatsu.utils.ext.firstVisibleItemPosition
 import org.koitharu.kotatsu.utils.ext.viewLifecycleScope
 
 class WebtoonReaderFragment : BaseReader<FragmentReaderWebtoonBinding>() {
@@ -52,7 +52,7 @@ class WebtoonReaderFragment : BaseReader<FragmentReaderWebtoonBinding>() {
 				setItems.await() ?: return@launchWhenCreated
 				if (position != -1) {
 					with(binding.recyclerView) {
-						firstItem = position
+						firstVisibleItemPosition = position
 						post {
 							(findViewHolderForAdapterPosition(position) as? WebtoonHolder)
 								?.restoreScroll(pendingState.scroll)
@@ -91,6 +91,6 @@ class WebtoonReaderFragment : BaseReader<FragmentReaderWebtoonBinding>() {
 	}
 
 	override fun switchPageTo(position: Int, smooth: Boolean) {
-		binding.recyclerView.firstItem = position
+		binding.recyclerView.firstVisibleItemPosition = position
 	}
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/search/ui/suggestion/SearchSuggestionItemCallback.kt b/app/src/main/java/org/koitharu/kotatsu/search/ui/suggestion/SearchSuggestionItemCallback.kt
index 64e53dc6b..7c65c7c42 100644
--- a/app/src/main/java/org/koitharu/kotatsu/search/ui/suggestion/SearchSuggestionItemCallback.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/search/ui/suggestion/SearchSuggestionItemCallback.kt
@@ -31,7 +31,7 @@ class SearchSuggestionItemCallback(
 	): Boolean = false
 
 	override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
-		val item = viewHolder.getItem<SearchSuggestionItem.RecentQuery>() ?: return
+		val item = viewHolder.getItem(SearchSuggestionItem.RecentQuery::class.java) ?: return
 		listener.onRemoveQuery(item.query)
 	}
 
diff --git a/app/src/main/java/org/koitharu/kotatsu/settings/AppearanceSettingsFragment.kt b/app/src/main/java/org/koitharu/kotatsu/settings/AppearanceSettingsFragment.kt
index aca880ea1..36031ec21 100644
--- a/app/src/main/java/org/koitharu/kotatsu/settings/AppearanceSettingsFragment.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/settings/AppearanceSettingsFragment.kt
@@ -25,9 +25,10 @@ class AppearanceSettingsFragment :
 	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
 		addPreferencesFromResource(R.xml.pref_appearance)
 		findPreference<SliderPreference>(AppSettings.KEY_GRID_SIZE)?.run {
-			summary = "%d%%".format(value)
+			val pattern = context.getString(R.string.percent_string_pattern)
+			summary = pattern.format(value.toString())
 			setOnPreferenceChangeListener { preference, newValue ->
-				preference.summary = "%d%%".format(newValue)
+				preference.summary = pattern.format(newValue.toString())
 				true
 			}
 		}
diff --git a/app/src/main/java/org/koitharu/kotatsu/settings/SettingsModule.kt b/app/src/main/java/org/koitharu/kotatsu/settings/SettingsModule.kt
index 6d9f543c4..e8e7f97ae 100644
--- a/app/src/main/java/org/koitharu/kotatsu/settings/SettingsModule.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/settings/SettingsModule.kt
@@ -18,7 +18,7 @@ val settingsModule
 
 		single { BackupRepository(get()) }
 		single { RestoreRepository(get()) }
-		single { AppSettings(androidContext()) }
+		single(createdAtStart = true) { AppSettings(androidContext()) }
 
 		viewModel { BackupViewModel(get(), androidContext()) }
 		viewModel { params ->
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/BottomSheetToolbarController.kt b/app/src/main/java/org/koitharu/kotatsu/utils/BottomSheetToolbarController.kt
index 9a703ffd7..17d62d3a3 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/BottomSheetToolbarController.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/BottomSheetToolbarController.kt
@@ -2,8 +2,8 @@ package org.koitharu.kotatsu.utils
 
 import android.view.View
 import androidx.appcompat.widget.Toolbar
-import com.google.android.material.bottomsheet.BottomSheetBehavior
 import com.google.android.material.R as materialR
+import com.google.android.material.bottomsheet.BottomSheetBehavior
 
 open class BottomSheetToolbarController(
 	protected val toolbar: Toolbar,
@@ -17,7 +17,5 @@ open class BottomSheetToolbarController(
 		}
 	}
 
-	override fun onSlide(bottomSheet: View, slideOffset: Float) {
-
-	}
+	override fun onSlide(bottomSheet: View, slideOffset: Float) = Unit
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/FileSize.kt b/app/src/main/java/org/koitharu/kotatsu/utils/FileSize.kt
index f06200dbd..cb558edfe 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/FileSize.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/FileSize.kt
@@ -32,4 +32,4 @@ enum class FileSize(private val multiplier: Int) {
 			}
 		}
 	}
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/GridTouchHelper.kt b/app/src/main/java/org/koitharu/kotatsu/utils/GridTouchHelper.kt
index 86c6cccf0..13ccd3fa7 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/GridTouchHelper.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/GridTouchHelper.kt
@@ -5,8 +5,10 @@ import android.view.GestureDetector
 import android.view.MotionEvent
 import kotlin.math.roundToInt
 
-class GridTouchHelper(context: Context, private val listener: OnGridTouchListener) :
-	GestureDetector.SimpleOnGestureListener() {
+class GridTouchHelper(
+	context: Context,
+	private val listener: OnGridTouchListener
+) : GestureDetector.SimpleOnGestureListener() {
 
 	private val detector = GestureDetector(context, this)
 	private val width = context.resources.displayMetrics.widthPixels
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/SelectionController.kt b/app/src/main/java/org/koitharu/kotatsu/utils/SelectionController.kt
deleted file mode 100644
index f3274af2e..000000000
--- a/app/src/main/java/org/koitharu/kotatsu/utils/SelectionController.kt
+++ /dev/null
@@ -1,10 +0,0 @@
-package org.koitharu.kotatsu.utils
-
-import kotlinx.coroutines.flow.MutableStateFlow
-
-class SelectionController {
-
-	private val state = MutableStateFlow(emptySet<Int>())
-
-
-}
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/WordSet.kt b/app/src/main/java/org/koitharu/kotatsu/utils/WordSet.kt
deleted file mode 100644
index 214c934dd..000000000
--- a/app/src/main/java/org/koitharu/kotatsu/utils/WordSet.kt
+++ /dev/null
@@ -1,9 +0,0 @@
-package org.koitharu.kotatsu.utils
-
-class WordSet(private vararg val words: String) {
-
-	fun anyWordIn(dateString: String): Boolean = words.any {
-		dateString.contains(it, ignoreCase = true)
-	}
-
-}
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/ext/CommonExt.kt b/app/src/main/java/org/koitharu/kotatsu/utils/ext/CommonExt.kt
index 67ca43114..dc6974749 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/ext/CommonExt.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/ext/CommonExt.kt
@@ -1,16 +1,14 @@
 package org.koitharu.kotatsu.utils.ext
 
 import android.content.res.Resources
-import android.util.Log
-import java.io.FileNotFoundException
-import java.net.SocketTimeoutException
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
 import org.koitharu.kotatsu.core.exceptions.EmptyHistoryException
 import org.koitharu.kotatsu.core.exceptions.UnsupportedFileException
 import org.koitharu.kotatsu.core.exceptions.WrongPasswordException
 import org.koitharu.kotatsu.parsers.exception.AuthRequiredException
-import org.koitharu.kotatsu.parsers.util.format
+import java.io.FileNotFoundException
+import java.net.SocketTimeoutException
 
 fun Throwable.getDisplayMessage(resources: Resources) = when (this) {
 	is AuthRequiredException -> resources.getString(R.string.auth_required)
@@ -22,12 +20,4 @@ fun Throwable.getDisplayMessage(resources: Resources) = when (this) {
 	is SocketTimeoutException -> resources.getString(R.string.network_error)
 	is WrongPasswordException -> resources.getString(R.string.wrong_password)
 	else -> localizedMessage ?: resources.getString(R.string.error_occurred)
-}
-
-inline fun <T> measured(tag: String, block: () -> T): T {
-	val time = System.currentTimeMillis()
-	val res = block()
-	val spent = System.currentTimeMillis() - time
-	Log.d("measured", "$tag ${spent.format(1)} ms")
-	return res
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/ext/CoroutineExt.kt b/app/src/main/java/org/koitharu/kotatsu/utils/ext/CoroutineExt.kt
index 40f1268b9..412ead77c 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/ext/CoroutineExt.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/ext/CoroutineExt.kt
@@ -3,10 +3,8 @@ package org.koitharu.kotatsu.utils.ext
 import androidx.lifecycle.LifecycleCoroutineScope
 import androidx.lifecycle.ProcessLifecycleOwner
 import androidx.lifecycle.lifecycleScope
-import kotlinx.coroutines.*
+import kotlinx.coroutines.CoroutineExceptionHandler
 import org.koitharu.kotatsu.BuildConfig
-import kotlin.coroutines.CoroutineContext
-import kotlin.coroutines.EmptyCoroutineContext
 
 val IgnoreErrors
 	get() = CoroutineExceptionHandler { _, e ->
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/ext/DateExt.kt b/app/src/main/java/org/koitharu/kotatsu/utils/ext/DateExt.kt
index 89a076473..0cc08fd55 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/ext/DateExt.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/ext/DateExt.kt
@@ -15,6 +15,6 @@ fun Date.formatRelative(minResolution: Long): CharSequence = DateUtils.getRelati
 
 fun Date.daysDiff(other: Long): Int {
 	val thisDay = time / TimeUnit.DAYS.toMillis(1L)
-	val otherDay = other/ TimeUnit.DAYS.toMillis(1L)
+	val otherDay = other / TimeUnit.DAYS.toMillis(1L)
 	return (thisDay - otherDay).toInt()
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/ext/FragmentExt.kt b/app/src/main/java/org/koitharu/kotatsu/utils/ext/FragmentExt.kt
index cae599f8a..d881d3b1d 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/ext/FragmentExt.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/ext/FragmentExt.kt
@@ -26,11 +26,12 @@ fun <T : Parcelable> Fragment.parcelableArgument(name: String): Lazy<T> {
 	}
 }
 
-inline fun <reified T : Serializable> Fragment.serializableArgument(name: String): Lazy<T> {
+fun <T : Serializable> Fragment.serializableArgument(name: String): Lazy<T> {
 	return lazy(LazyThreadSafetyMode.NONE) {
-		requireNotNull(arguments?.getSerializable(name) as? T) {
+		@Suppress("UNCHECKED_CAST")
+		requireNotNull(arguments?.getSerializable(name)) {
 			"No argument $name passed into ${javaClass.simpleName}"
-		}
+		} as T
 	}
 }
 
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/ext/LiveDataExt.kt b/app/src/main/java/org/koitharu/kotatsu/utils/ext/LiveDataExt.kt
index 03123c692..ad1fe8b39 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/ext/LiveDataExt.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/ext/LiveDataExt.kt
@@ -4,10 +4,10 @@ import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.Observer
 import androidx.lifecycle.liveData
-import kotlinx.coroutines.flow.Flow
-import org.koitharu.kotatsu.utils.BufferedObserver
 import kotlin.coroutines.CoroutineContext
 import kotlin.coroutines.EmptyCoroutineContext
+import kotlinx.coroutines.flow.Flow
+import org.koitharu.kotatsu.utils.BufferedObserver
 
 fun <T> LiveData<T?>.observeNotNull(owner: LifecycleOwner, observer: Observer<T>) {
 	this.observe(owner) {
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/ext/PreferencesExt.kt b/app/src/main/java/org/koitharu/kotatsu/utils/ext/PreferencesExt.kt
index 2bbdd6498..d20c1eca6 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/ext/PreferencesExt.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/ext/PreferencesExt.kt
@@ -9,17 +9,17 @@ fun ListPreference.setDefaultValueCompat(defaultValue: String) {
 	}
 }
 
-fun <E: Enum<E>> SharedPreferences.getEnumValue(key: String, enumClass: Class<E>): E? {
+fun <E : Enum<E>> SharedPreferences.getEnumValue(key: String, enumClass: Class<E>): E? {
 	val stringValue = getString(key, null) ?: return null
 	return enumClass.enumConstants?.find {
 		it.name == stringValue
 	}
 }
 
-fun <E: Enum<E>> SharedPreferences.getEnumValue(key: String, defaultValue: E): E {
+fun <E : Enum<E>> SharedPreferences.getEnumValue(key: String, defaultValue: E): E {
 	return getEnumValue(key, defaultValue.javaClass) ?: defaultValue
 }
 
-fun <E: Enum<E>> SharedPreferences.Editor.putEnumValue(key: String, value: E?) {
+fun <E : Enum<E>> SharedPreferences.Editor.putEnumValue(key: String, value: E?) {
 	putString(key, value?.name)
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/ext/TextViewExt.kt b/app/src/main/java/org/koitharu/kotatsu/utils/ext/TextViewExt.kt
index 59620f2b0..bca90a845 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/ext/TextViewExt.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/ext/TextViewExt.kt
@@ -5,12 +5,11 @@ import android.view.View
 import android.widget.TextView
 import androidx.annotation.AttrRes
 import androidx.annotation.StringRes
-import androidx.core.content.res.use
 import androidx.core.view.isGone
 
 var TextView.textAndVisible: CharSequence?
-	inline get() = text?.takeIf { visibility == View.VISIBLE }
-	inline set(value) {
+	get() = text?.takeIf { visibility == View.VISIBLE }
+	set(value) {
 		text = value
 		isGone = value.isNullOrEmpty()
 	}
@@ -40,8 +39,5 @@ fun TextView.setTextAndVisible(@StringRes textResId: Int) {
 }
 
 fun TextView.setTextColorAttr(@AttrRes attrResId: Int) {
-	val colors = context.obtainStyledAttributes(intArrayOf(attrResId)).use {
-		it.getColorStateList(0)
-	}
-	setTextColor(colors)
+	setTextColor(context.getThemeColorStateList(attrResId))
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/ext/ThemeExt.kt b/app/src/main/java/org/koitharu/kotatsu/utils/ext/ThemeExt.kt
index 795fd3979..85ee5ea39 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/ext/ThemeExt.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/ext/ThemeExt.kt
@@ -4,20 +4,24 @@ import android.content.Context
 import android.graphics.Color
 import androidx.annotation.AttrRes
 import androidx.annotation.ColorInt
-import androidx.annotation.Px
 import androidx.core.content.res.use
 
-@Px
-fun Context.getThemeDimen(@AttrRes resId: Int) = obtainStyledAttributes(intArrayOf(resId)).use {
-	it.getDimension(0, 0f)
-}
-
-fun Context.getThemeDrawable(@AttrRes resId: Int) = obtainStyledAttributes(intArrayOf(resId)).use {
+fun Context.getThemeDrawable(
+	@AttrRes resId: Int,
+) = obtainStyledAttributes(intArrayOf(resId)).use {
 	it.getDrawable(0)
 }
 
 @ColorInt
-fun Context.getThemeColor(@AttrRes resId: Int, @ColorInt default: Int = Color.TRANSPARENT) =
-	obtainStyledAttributes(intArrayOf(resId)).use {
-		it.getColor(0, default)
-	}
\ No newline at end of file
+fun Context.getThemeColor(
+	@AttrRes resId: Int,
+	@ColorInt default: Int = Color.TRANSPARENT
+) = obtainStyledAttributes(intArrayOf(resId)).use {
+	it.getColor(0, default)
+}
+
+fun Context.getThemeColorStateList(
+	@AttrRes resId: Int,
+) = obtainStyledAttributes(intArrayOf(resId)).use {
+	it.getColorStateList(0)
+}
\ No newline at end of file
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/ext/ViewExt.kt b/app/src/main/java/org/koitharu/kotatsu/utils/ext/ViewExt.kt
index c52d50290..021c77859 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/ext/ViewExt.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/ext/ViewExt.kt
@@ -2,20 +2,15 @@ package org.koitharu.kotatsu.utils.ext
 
 import android.app.Activity
 import android.graphics.Rect
-import android.view.LayoutInflater
-import android.view.Menu
 import android.view.View
-import android.view.ViewGroup
 import android.view.inputmethod.InputMethodManager
-import androidx.annotation.LayoutRes
-import androidx.annotation.MenuRes
-import androidx.appcompat.widget.PopupMenu
 import androidx.core.view.children
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import androidx.viewpager2.widget.ViewPager2
 import com.google.android.material.slider.Slider
 import com.hannesdorfmann.adapterdelegates4.dsl.AdapterDelegateViewBindingViewHolder
+import com.hannesdorfmann.adapterdelegates4.dsl.AdapterDelegateViewHolder
 import kotlin.math.roundToInt
 
 fun View.hideKeyboard() {
@@ -28,19 +23,15 @@ fun View.showKeyboard() {
 	imm.showSoftInput(this, 0)
 }
 
-inline fun <reified T : View> ViewGroup.inflate(@LayoutRes resId: Int) =
-	LayoutInflater.from(context).inflate(resId, this, false) as T
-
-val RecyclerView.hasItems: Boolean
-	get() = (adapter?.itemCount ?: 0) > 0
-
 fun RecyclerView.clearItemDecorations() {
+	suppressLayout(true)
 	while (itemDecorationCount > 0) {
 		removeItemDecorationAt(0)
 	}
+	suppressLayout(false)
 }
 
-var RecyclerView.firstItem: Int
+var RecyclerView.firstVisibleItemPosition: Int
 	get() = (layoutManager as? LinearLayoutManager)?.findFirstVisibleItemPosition()
 		?: RecyclerView.NO_POSITION
 	set(value) {
@@ -49,18 +40,6 @@ var RecyclerView.firstItem: Int
 		}
 	}
 
-inline fun View.showPopupMenu(
-	@MenuRes menuRes: Int,
-	onPrepare: (Menu) -> Unit = {},
-	onItemClick: PopupMenu.OnMenuItemClickListener,
-) {
-	val menu = PopupMenu(context, this)
-	menu.inflate(menuRes)
-	menu.setOnMenuItemClickListener(onItemClick)
-	onPrepare(menu.menu)
-	menu.show()
-}
-
 fun View.hasGlobalPoint(x: Int, y: Int): Boolean {
 	if (visibility != View.VISIBLE) {
 		return false
@@ -97,7 +76,7 @@ inline fun ViewPager2.doOnPageChanged(crossinline callback: (Int) -> Unit) {
 }
 
 val ViewPager2.recyclerView: RecyclerView?
-	inline get() = children.find { it is RecyclerView } as? RecyclerView
+	get() = children.firstNotNullOfOrNull { it as? RecyclerView }
 
 fun View.resetTransformations() {
 	alpha = 1f
@@ -106,6 +85,7 @@ fun View.resetTransformations() {
 	translationZ = 0f
 	scaleX = 1f
 	scaleY = 1f
+	rotation = 0f
 	rotationX = 0f
 	rotationY = 0f
 }
@@ -133,8 +113,17 @@ fun RecyclerView.findCenterViewPosition(): Int {
 	return getChildAdapterPosition(view)
 }
 
-inline fun <reified T> RecyclerView.ViewHolder.getItem(): T? {
-	return ((this as? AdapterDelegateViewBindingViewHolder<*, *>)?.item as? T)
+fun <T> RecyclerView.ViewHolder.getItem(clazz: Class<T>): T? {
+	val rawItem = when (this) {
+		is AdapterDelegateViewBindingViewHolder<*, *> -> item
+		is AdapterDelegateViewHolder<*> -> item
+		else -> null
+	} ?: return null
+	return if (clazz.isAssignableFrom(rawItem.javaClass)) {
+		clazz.cast(rawItem)
+	} else {
+		null
+	}
 }
 
 fun Slider.setValueRounded(newValue: Float) {
diff --git a/app/src/main/java/org/koitharu/kotatsu/utils/progress/IntPercentLabelFormatter.kt b/app/src/main/java/org/koitharu/kotatsu/utils/progress/IntPercentLabelFormatter.kt
index ed9773c99..5456ae5b0 100644
--- a/app/src/main/java/org/koitharu/kotatsu/utils/progress/IntPercentLabelFormatter.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/progress/IntPercentLabelFormatter.kt
@@ -1,7 +1,12 @@
 package org.koitharu.kotatsu.utils.progress
 
+import android.content.Context
 import com.google.android.material.slider.LabelFormatter
+import org.koitharu.kotatsu.R
 
-class IntPercentLabelFormatter : LabelFormatter {
-	override fun getFormattedValue(value: Float) = "%d%%".format(value.toInt())
+class IntPercentLabelFormatter(context: Context) : LabelFormatter {
+
+	private val pattern = context.getString(R.string.percent_string_pattern)
+
+	override fun getFormattedValue(value: Float) = pattern.format(value.toInt().toString())
 }
\ No newline at end of file