diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/BaseActivity.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/BaseActivity.kt
index 80e7f2c7ed..f9f867fae2 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/BaseActivity.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/base/activity/BaseActivity.kt
@@ -1,29 +1,13 @@
 package eu.kanade.tachiyomi.ui.base.activity
 
-import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
-import eu.kanade.tachiyomi.R
-import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.util.LocaleHelper
-import uy.kohesive.injekt.injectLazy
 
 abstract class BaseActivity : AppCompatActivity() {
 
-    val preferences: PreferencesHelper by injectLazy()
-
     init {
         @Suppress("LeakingThis")
         LocaleHelper.updateConfiguration(this)
     }
 
-    override fun onCreate(savedInstanceState: Bundle?) {
-        setTheme(when (preferences.theme()) {
-            2 -> R.style.Theme_Tachiyomi_Dark
-            3 -> R.style.Theme_Tachiyomi_Amoled
-            4 -> R.style.Theme_Tachiyomi_DarkBlue
-            else -> R.style.Theme_Tachiyomi
-        })
-        super.onCreate(savedInstanceState)
-    }
-
 }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt
deleted file mode 100644
index c3f394e1c9..0000000000
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt
+++ /dev/null
@@ -1,115 +0,0 @@
-package eu.kanade.tachiyomi.ui.webview
-
-import android.content.Context
-import android.content.Intent
-import android.graphics.Bitmap
-import android.graphics.Color
-import android.os.Bundle
-import android.view.Menu
-import android.view.MenuItem
-import android.webkit.WebView
-import androidx.core.graphics.ColorUtils
-import eu.kanade.tachiyomi.R
-import eu.kanade.tachiyomi.source.SourceManager
-import eu.kanade.tachiyomi.source.online.HttpSource
-import eu.kanade.tachiyomi.ui.base.activity.BaseActivity
-import eu.kanade.tachiyomi.util.WebViewClientCompat
-import kotlinx.android.synthetic.main.webview_activity.toolbar
-import kotlinx.android.synthetic.main.webview_activity.webview
-import uy.kohesive.injekt.injectLazy
-
-
-class WebViewActivity : BaseActivity() {
-
-    private val sourceManager by injectLazy<SourceManager>()
-
-    private var bundle: Bundle? = null
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.webview_activity)
-
-        title = intent.extras?.getString(TITLE_KEY)
-        setSupportActionBar(toolbar)
-        supportActionBar?.setDisplayHomeAsUpEnabled(true)
-        toolbar.setNavigationOnClickListener {
-            super.onBackPressed()
-        }
-
-        if (bundle == null) {
-            val source = sourceManager.get(intent.extras!!.getLong(SOURCE_KEY)) as? HttpSource ?: return
-            val url = intent.extras!!.getString(URL_KEY) ?: return
-            val headers = source.headers.toMultimap().mapValues { it.value.getOrNull(0) ?: "" }
-
-            webview.webViewClient = object : WebViewClientCompat() {
-                override fun shouldOverrideUrlCompat(view: WebView, url: String): Boolean {
-                    view.loadUrl(url)
-                    return true
-                }
-
-                override fun onPageFinished(view: WebView?, url: String?) {
-                    super.onPageFinished(view, url)
-                    invalidateOptionsMenu()
-                    title = view?.title
-                }
-
-                override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?) {
-                    super.onPageStarted(view, url, favicon)
-                    invalidateOptionsMenu()
-                }
-            }
-            webview.settings.javaScriptEnabled = true
-            webview.settings.userAgentString = source.headers["User-Agent"]
-            webview.loadUrl(url, headers)
-        } else {
-            webview.restoreState(bundle)
-        }
-    }
-
-    override fun onCreateOptionsMenu(menu: Menu): Boolean {
-        menuInflater.inflate(R.menu.webview, menu)
-        return true
-    }
-
-    override fun onPrepareOptionsMenu(menu: Menu?): Boolean {
-        val backItem = toolbar.menu.findItem(R.id.action_web_back)
-        val forwardItem = toolbar.menu.findItem(R.id.action_web_forward)
-        backItem?.isEnabled = webview.canGoBack()
-        forwardItem?.isEnabled = webview.canGoForward()
-
-        val translucentWhite = ColorUtils.setAlphaComponent(Color.WHITE, 127)
-        backItem.icon?.setTint(if (webview.canGoBack()) Color.WHITE else translucentWhite)
-        forwardItem?.icon?.setTint(if (webview.canGoForward()) Color.WHITE else translucentWhite)
-
-        return super.onPrepareOptionsMenu(menu)
-    }
-
-    override fun onBackPressed() {
-        if (webview.canGoBack()) webview.goBack()
-        else super.onBackPressed()
-    }
-
-    override fun onOptionsItemSelected(item: MenuItem): Boolean {
-        when (item.itemId) {
-            R.id.action_web_back -> webview.goBack()
-            R.id.action_web_forward -> webview.goForward()
-            R.id.action_web_refresh -> webview.reload()
-        }
-        return super.onOptionsItemSelected(item)
-    }
-
-    companion object {
-        private const val SOURCE_KEY = "source_key"
-        private const val URL_KEY = "url_key"
-        private const val TITLE_KEY = "title_key"
-
-        fun newIntent(context: Context, sourceId: Long, url: String, title: String?): Intent {
-            val intent = Intent(context, WebViewActivity::class.java)
-            intent.putExtra(SOURCE_KEY, sourceId)
-            intent.putExtra(URL_KEY, url)
-            intent.putExtra(TITLE_KEY, title)
-            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
-            return intent
-        }
-    }
-}
diff --git a/app/src/main/res/layout/main_activity.xml b/app/src/main/res/layout/main_activity.xml
index 9ced7fd009..54f1f22952 100644
--- a/app/src/main/res/layout/main_activity.xml
+++ b/app/src/main/res/layout/main_activity.xml
@@ -27,6 +27,7 @@
 
             <androidx.appcompat.widget.Toolbar
                 android:id="@+id/toolbar"
+                xmlns:android="http://schemas.android.com/apk/res/android"
                 android:layout_width="match_parent"
                 android:layout_height="?attr/actionBarSize"
                 android:background="?attr/colorPrimary"