diff --git a/app/src/main/java/org/koitharu/kotatsu/ui/details/ChapterHolder.kt b/app/src/main/java/org/koitharu/kotatsu/ui/details/ChapterHolder.kt
index fae11cdbd..31c5a4043 100644
--- a/app/src/main/java/org/koitharu/kotatsu/ui/details/ChapterHolder.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/ui/details/ChapterHolder.kt
@@ -28,7 +28,7 @@ class ChapterHolder(parent: ViewGroup) :
 			}
 			ChapterExtra.CURRENT -> {
 				textView_number.setBackgroundResource(R.drawable.bg_badge_outline_accent)
-				textView_number.setTextColor(context.getThemeColor(R.attr.colorAccent))
+				textView_number.setTextColor(context.getThemeColor(androidx.appcompat.R.attr.colorAccent))
 			}
 			ChapterExtra.NEW -> {
 				textView_number.setBackgroundResource(R.drawable.bg_badge_accent)
diff --git a/app/src/main/java/org/koitharu/kotatsu/ui/details/MangaDetailsActivity.kt b/app/src/main/java/org/koitharu/kotatsu/ui/details/MangaDetailsActivity.kt
index d0c0ddd71..12443692e 100644
--- a/app/src/main/java/org/koitharu/kotatsu/ui/details/MangaDetailsActivity.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/ui/details/MangaDetailsActivity.kt
@@ -206,7 +206,7 @@ class MangaDetailsActivity : BaseActivity(), MangaDetailsView,
 	override fun onSupportActionModeFinished(mode: ActionMode) {
 		super.onSupportActionModeFinished(mode)
 		pager.isUserInputEnabled = true
-		window?.statusBarColor = getThemeColor(R.attr.colorPrimaryDark)
+		window?.statusBarColor = getThemeColor(androidx.appcompat.R.attr.colorPrimaryDark)
 	}
 
 	companion object {
diff --git a/app/src/main/res/drawable-hdpi/ic_stat_update.png b/app/src/main/res/drawable-hdpi/ic_stat_update.png
deleted file mode 100644
index 0c727d5b0..000000000
Binary files a/app/src/main/res/drawable-hdpi/ic_stat_update.png and /dev/null differ
diff --git a/app/src/main/res/drawable-mdpi/ic_stat_update.png b/app/src/main/res/drawable-mdpi/ic_stat_update.png
deleted file mode 100644
index 433e2b882..000000000
Binary files a/app/src/main/res/drawable-mdpi/ic_stat_update.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/ic_stat_update.png b/app/src/main/res/drawable-xhdpi/ic_stat_update.png
deleted file mode 100644
index 1ebbddc98..000000000
Binary files a/app/src/main/res/drawable-xhdpi/ic_stat_update.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xxhdpi/ic_stat_update.png b/app/src/main/res/drawable-xxhdpi/ic_stat_update.png
deleted file mode 100644
index 1c712b6ab..000000000
Binary files a/app/src/main/res/drawable-xxhdpi/ic_stat_update.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xxxhdpi/ic_stat_update.png b/app/src/main/res/drawable-xxxhdpi/ic_stat_update.png
deleted file mode 100644
index f341fd426..000000000
Binary files a/app/src/main/res/drawable-xxxhdpi/ic_stat_update.png and /dev/null differ
diff --git a/app/src/main/res/drawable/ic_download.xml b/app/src/main/res/drawable/ic_download.xml
deleted file mode 100644
index 8bd663095..000000000
--- a/app/src/main/res/drawable/ic_download.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector
-	xmlns:android="http://schemas.android.com/apk/res/android"
-	android:width="24dp"
-	android:height="24dp"
-	android:tint="?attr/colorControlNormal"
-	android:viewportWidth="24"
-	android:viewportHeight="24">
-	<path
-		android:fillColor="#000"
-		android:pathData="M13,5V11H14.17L12,13.17L9.83,11H11V5H13M15,3H9V9H5L12,16L19,9H15V3M19,18H5V20H19V18Z" />
-</vector>
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index 4d15d015f..9bb9f66db 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -18,4 +18,5 @@ android.useAndroidX=true
 # Automatically convert third-party libraries to use AndroidX
 android.enableJetifier=true
 # Kotlin code style for this project: "official" or "obsolete":
-kotlin.code.style=official
\ No newline at end of file
+kotlin.code.style=official
+android.nonTransitiveRClass=true
\ No newline at end of file