diff --git a/app/sampledata/covers/Forget-me-not Volume 1.jpg b/app/sampledata/covers/Forget-me-not Volume 1.jpg
deleted file mode 100644
index f5bbc36e5..000000000
Binary files a/app/sampledata/covers/Forget-me-not Volume 1.jpg and /dev/null differ
diff --git a/app/sampledata/covers/Forget-me-not Volume 2.jpg b/app/sampledata/covers/Forget-me-not Volume 2.jpg
deleted file mode 100644
index fea5eaaba..000000000
Binary files a/app/sampledata/covers/Forget-me-not Volume 2.jpg and /dev/null differ
diff --git a/app/sampledata/covers/La Pomme Prisoinniere.jpg b/app/sampledata/covers/La Pomme Prisoinniere.jpg
deleted file mode 100644
index f82af29a7..000000000
Binary files a/app/sampledata/covers/La Pomme Prisoinniere.jpg and /dev/null differ
diff --git a/app/sampledata/covers/Momo Kanchou no Himitsu Kichi.jpg b/app/sampledata/covers/Momo Kanchou no Himitsu Kichi.jpg
deleted file mode 100644
index 6a5207cf7..000000000
Binary files a/app/sampledata/covers/Momo Kanchou no Himitsu Kichi.jpg and /dev/null differ
diff --git a/app/sampledata/covers/Omoide Emanon.jpg b/app/sampledata/covers/Omoide Emanon.jpg
deleted file mode 100644
index b078f670a..000000000
Binary files a/app/sampledata/covers/Omoide Emanon.jpg and /dev/null differ
diff --git a/app/sampledata/covers/Sasurai Emanon Volume 1.jpg b/app/sampledata/covers/Sasurai Emanon Volume 1.jpg
deleted file mode 100644
index 4a185e835..000000000
Binary files a/app/sampledata/covers/Sasurai Emanon Volume 1.jpg and /dev/null differ
diff --git a/app/sampledata/covers/Sasurai Emanon Volume 2.jpg b/app/sampledata/covers/Sasurai Emanon Volume 2.jpg
deleted file mode 100644
index f7f745f23..000000000
Binary files a/app/sampledata/covers/Sasurai Emanon Volume 2.jpg and /dev/null differ
diff --git a/app/sampledata/covers/Sasurai Emanon Volume 3.jpg b/app/sampledata/covers/Sasurai Emanon Volume 3.jpg
deleted file mode 100644
index 714538ff8..000000000
Binary files a/app/sampledata/covers/Sasurai Emanon Volume 3.jpg and /dev/null differ
diff --git a/app/sampledata/covers/Wandering Island Volume 1.jpg b/app/sampledata/covers/Wandering Island Volume 1.jpg
deleted file mode 100644
index 2d6edccee..000000000
Binary files a/app/sampledata/covers/Wandering Island Volume 1.jpg and /dev/null differ
diff --git a/app/sampledata/covers/Wandering Island Volume 2.jpg b/app/sampledata/covers/Wandering Island Volume 2.jpg
deleted file mode 100644
index 52e1e5562..000000000
Binary files a/app/sampledata/covers/Wandering Island Volume 2.jpg and /dev/null differ
diff --git a/app/sampledata/genres b/app/sampledata/genres
deleted file mode 100644
index 017d3ee73..000000000
--- a/app/sampledata/genres
+++ /dev/null
@@ -1,10 +0,0 @@
-Slice of Life, Mystery
-Slice of Life, Mystery
-Psychological, Romance, Comedy, Slice of Life, Supernatural
-Sci-Fi, Comedy
-Reincarnation, Sci-Fi, Historical, Psychological, Drama, Slice of Life, Supernatural, Mystery
-Reincarnation, Sci-Fi, Historical, Psychological, Drama, Slice of Life, Supernatural, Mystery
-Reincarnation, Sci-Fi, Historical, Psychological, Drama, Slice of Life, Supernatural, Mystery
-Reincarnation, Sci-Fi, Historical, Psychological, Drama, Slice of Life, Supernatural, Mystery
-Adventure, Slice of Life, Mystery
-Adventure, Slice of Life, Mystery
diff --git a/app/sampledata/titles b/app/sampledata/titles
deleted file mode 100644
index 9bdeb7594..000000000
--- a/app/sampledata/titles
+++ /dev/null
@@ -1,10 +0,0 @@
-Forget-me-not Vol. 1
-Forget-me-not Vol. 2
-La Pomme Prisoinniere
-Momo Kanchou no Himitsu Kichi
-Omoide Emanon
-Sasurai Emanon Vol. 1
-Sasurai Emanon Vol. 2
-Sasurai Emanon Vol. 3
-Wandering Island Vol. 1
-Wandering Island Vol. 2
diff --git a/app/src/main/res/layout/activity_color_filter.xml b/app/src/main/res/layout/activity_color_filter.xml
index 0d198d9d6..f11930675 100644
--- a/app/src/main/res/layout/activity_color_filter.xml
+++ b/app/src/main/res/layout/activity_color_filter.xml
@@ -51,7 +51,7 @@
 				app:shapeAppearance="?shapeAppearanceCornerLarge"
 				app:strokeColor="?colorOutline"
 				app:strokeWidth="1dp"
-				tools:src="@sample/covers" />
+				tools:src="@tools:sample/backgrounds/scenic" />
 
 			<com.google.android.material.progressindicator.CircularProgressIndicator
 				android:id="@+id/progress_before"
@@ -88,7 +88,7 @@
 				app:shapeAppearance="?shapeAppearanceCornerLarge"
 				app:strokeColor="?colorOutline"
 				app:strokeWidth="1dp"
-				tools:src="@sample/covers" />
+				tools:src="@tools:sample/backgrounds/scenic" />
 
 			<com.google.android.material.progressindicator.CircularProgressIndicator
 				android:id="@+id/progress_after"
diff --git a/app/src/main/res/layout/fragment_details.xml b/app/src/main/res/layout/fragment_details.xml
index f41461b13..196c57a78 100644
--- a/app/src/main/res/layout/fragment_details.xml
+++ b/app/src/main/res/layout/fragment_details.xml
@@ -29,7 +29,7 @@
 			app:layout_constraintTop_toTopOf="parent"
 			app:layout_constraintWidth_percent="0.3"
 			app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover"
-			tools:background="@sample/covers[5]"
+			tools:background="@tools:sample/backgrounds/scenic[5]"
 			tools:ignore="ContentDescription,UnusedAttribute" />
 
 		<org.koitharu.kotatsu.history.ui.util.ReadingProgressView
@@ -53,7 +53,7 @@
 			app:layout_constraintEnd_toEndOf="parent"
 			app:layout_constraintStart_toEndOf="@id/imageView_cover"
 			app:layout_constraintTop_toTopOf="parent"
-			tools:text="@sample/titles[5]" />
+			tools:text="@tools:sample/backgrounds/scenic[5]" />
 
 		<TextView
 			android:id="@+id/textView_subtitle"
diff --git a/app/src/main/res/layout/item_bookmarks_group.xml b/app/src/main/res/layout/item_bookmarks_group.xml
index af68776e8..6e688154b 100644
--- a/app/src/main/res/layout/item_bookmarks_group.xml
+++ b/app/src/main/res/layout/item_bookmarks_group.xml
@@ -20,7 +20,7 @@
 			app:layout_constraintStart_toStartOf="parent"
 			app:layout_constraintTop_toTopOf="parent"
 			app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover.Small"
-			tools:src="@sample/covers" />
+			tools:src="@tools:sample/backgrounds/scenic" />
 
 		<TextView
 			android:id="@+id/textView_title"
@@ -33,7 +33,7 @@
 			app:layout_constraintEnd_toEndOf="parent"
 			app:layout_constraintStart_toEndOf="@+id/imageView_cover"
 			app:layout_constraintTop_toTopOf="@+id/imageView_cover"
-			tools:text="@sample/titles" />
+			tools:text="@tools:sample/lorem" />
 
 		<androidx.recyclerview.widget.RecyclerView
 			android:id="@+id/recyclerView"
diff --git a/app/src/main/res/layout/item_category.xml b/app/src/main/res/layout/item_category.xml
index 5bf8304b6..3f1e61d54 100644
--- a/app/src/main/res/layout/item_category.xml
+++ b/app/src/main/res/layout/item_category.xml
@@ -26,7 +26,7 @@
 		app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover.Small"
 		app:tintMode="src_atop"
 		tools:backgroundTint="#99FFFFFF"
-		tools:src="@sample/covers"
+		tools:src="@tools:sample/backgrounds/scenic"
 		tools:tint="#99FFFFFF" />
 
 	<com.google.android.material.imageview.ShapeableImageView
@@ -44,7 +44,7 @@
 		app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover.Small"
 		app:tintMode="src_atop"
 		tools:backgroundTint="#4DFFFFFF"
-		tools:src="@sample/covers"
+		tools:src="@tools:sample/backgrounds/scenic"
 		tools:tint="#4DFFFFFF" />
 
 	<com.google.android.material.imageview.ShapeableImageView
@@ -60,7 +60,7 @@
 		app:layout_constraintStart_toStartOf="parent"
 		app:layout_constraintTop_toTopOf="parent"
 		app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover.Small"
-		tools:src="@sample/covers" />
+		tools:src="@tools:sample/backgrounds/scenic" />
 
 	<TextView
 		android:id="@+id/textView_title"
diff --git a/app/src/main/res/layout/item_download.xml b/app/src/main/res/layout/item_download.xml
index 7369b59a4..c8d6176b0 100644
--- a/app/src/main/res/layout/item_download.xml
+++ b/app/src/main/res/layout/item_download.xml
@@ -23,7 +23,7 @@
 			app:layout_constraintStart_toStartOf="parent"
 			app:layout_constraintTop_toTopOf="parent"
 			app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover"
-			tools:src="@sample/covers" />
+			tools:src="@tools:sample/backgrounds/scenic" />
 
 		<TextView
 			android:id="@+id/textView_title"
@@ -38,7 +38,7 @@
 			app:layout_constraintEnd_toEndOf="parent"
 			app:layout_constraintStart_toEndOf="@id/imageView_cover"
 			app:layout_constraintTop_toTopOf="parent"
-			tools:text="@sample/titles" />
+			tools:text="@tools:sample/lorem" />
 
 		<com.google.android.material.progressindicator.LinearProgressIndicator
 			android:id="@+id/progressBar"
diff --git a/app/src/main/res/layout/item_feed.xml b/app/src/main/res/layout/item_feed.xml
index 54302aa1b..14c3be57d 100644
--- a/app/src/main/res/layout/item_feed.xml
+++ b/app/src/main/res/layout/item_feed.xml
@@ -18,7 +18,7 @@
 		app:layout_constraintStart_toStartOf="parent"
 		app:layout_constraintTop_toTopOf="parent"
 		app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover.Small"
-		tools:src="@sample/covers" />
+		tools:src="@tools:sample/backgrounds/scenic" />
 
 	<TextView
 		android:id="@+id/textView_title"
@@ -32,7 +32,7 @@
 		app:layout_constraintEnd_toEndOf="parent"
 		app:layout_constraintStart_toEndOf="@+id/imageView_cover"
 		app:layout_constraintTop_toTopOf="@+id/imageView_cover"
-		tools:text="@sample/titles" />
+		tools:text="@tools:sample/lorem" />
 
 	<TextView
 		android:id="@+id/textView_summary"
diff --git a/app/src/main/res/layout/item_manga_grid.xml b/app/src/main/res/layout/item_manga_grid.xml
index 364ce294a..d284fe023 100644
--- a/app/src/main/res/layout/item_manga_grid.xml
+++ b/app/src/main/res/layout/item_manga_grid.xml
@@ -27,7 +27,7 @@
 				android:scaleType="centerCrop"
 				app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover"
 				tools:ignore="ContentDescription"
-				tools:src="@sample/covers[5]" />
+				tools:src="@tools:sample/backgrounds/scenic[5]" />
 
 			<org.koitharu.kotatsu.history.ui.util.ReadingProgressView
 				android:id="@+id/progressView"
@@ -50,7 +50,7 @@
 			android:textColor="?android:attr/textColorPrimary"
 			app:layout_constraintStart_toStartOf="parent"
 			app:layout_constraintTop_toBottomOf="@+id/thumbnail"
-			tools:text="@sample/titles[5]" />
+			tools:text="@tools:sample/lorem" />
 
 	</LinearLayout>
 
diff --git a/app/src/main/res/layout/item_manga_list.xml b/app/src/main/res/layout/item_manga_list.xml
index 668b163c8..14309a582 100644
--- a/app/src/main/res/layout/item_manga_list.xml
+++ b/app/src/main/res/layout/item_manga_list.xml
@@ -18,7 +18,7 @@
 		app:layout_constraintStart_toStartOf="parent"
 		app:layout_constraintTop_toTopOf="parent"
 		app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover.Small"
-		tools:src="@sample/covers" />
+		tools:src="@tools:sample/backgrounds/scenic" />
 
 	<TextView
 		android:id="@+id/textView_title"
@@ -32,7 +32,7 @@
 		app:layout_constraintEnd_toEndOf="parent"
 		app:layout_constraintStart_toEndOf="@+id/imageView_cover"
 		app:layout_constraintTop_toTopOf="@+id/imageView_cover"
-		tools:text="@sample/titles" />
+		tools:text="@tools:sample/lorem" />
 
 	<TextView
 		android:id="@+id/textView_subtitle"
@@ -46,6 +46,6 @@
 		app:layout_constraintEnd_toEndOf="parent"
 		app:layout_constraintStart_toEndOf="@+id/imageView_cover"
 		app:layout_constraintTop_toBottomOf="@+id/textView_title"
-		tools:text="@sample/genres" />
+		tools:text="@tools:sample/lorem/random" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/layout/item_manga_list_details.xml b/app/src/main/res/layout/item_manga_list_details.xml
index ab20434bc..7e1472cdc 100644
--- a/app/src/main/res/layout/item_manga_list_details.xml
+++ b/app/src/main/res/layout/item_manga_list_details.xml
@@ -20,7 +20,7 @@
 			app:layout_constraintStart_toStartOf="parent"
 			app:layout_constraintTop_toTopOf="parent"
 			app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover"
-			tools:src="@sample/covers" />
+			tools:src="@tools:sample/backgrounds/scenic" />
 
 		<org.koitharu.kotatsu.history.ui.util.ReadingProgressView
 			android:id="@+id/progressView"
@@ -44,7 +44,7 @@
 			app:layout_constraintEnd_toEndOf="parent"
 			app:layout_constraintStart_toEndOf="@+id/imageView_cover"
 			app:layout_constraintTop_toTopOf="parent"
-			tools:text="@sample/titles" />
+			tools:text="@tools:sample/lorem" />
 
 		<TextView
 			android:id="@+id/textView_subtitle"
diff --git a/app/src/main/res/layout/item_scrobbling_info.xml b/app/src/main/res/layout/item_scrobbling_info.xml
index a3d589a9e..65a7148ff 100644
--- a/app/src/main/res/layout/item_scrobbling_info.xml
+++ b/app/src/main/res/layout/item_scrobbling_info.xml
@@ -21,7 +21,7 @@
 			android:layout_alignParentTop="true"
 			android:contentDescription="@null"
 			app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover.Small"
-			tools:src="@sample/covers[7]" />
+			tools:src="@tools:sample/backgrounds/scenic[7]" />
 
 		<TextView
 			android:id="@+id/textView_title"
@@ -36,7 +36,7 @@
 			android:textAppearance="@style/TextAppearance.Material3.TitleSmall"
 			app:drawableTint="?colorControlNormal"
 			tools:drawableEndCompat="@drawable/ic_shikimori"
-			tools:text="@sample/titles[5]" />
+			tools:text="@tools:sample/lorem" />
 
 		<RatingBar
 			android:id="@+id/ratingBar"
diff --git a/app/src/main/res/layout/item_scrobbling_manga.xml b/app/src/main/res/layout/item_scrobbling_manga.xml
index 512ca35e9..08d10a5e0 100644
--- a/app/src/main/res/layout/item_scrobbling_manga.xml
+++ b/app/src/main/res/layout/item_scrobbling_manga.xml
@@ -18,7 +18,7 @@
 		app:layout_constraintStart_toStartOf="parent"
 		app:layout_constraintTop_toTopOf="parent"
 		app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover.Small"
-		tools:src="@sample/covers" />
+		tools:src="@tools:sample/backgrounds/scenic" />
 
 	<TextView
 		android:id="@+id/textView_title"
@@ -32,7 +32,7 @@
 		app:layout_constraintEnd_toEndOf="parent"
 		app:layout_constraintStart_toEndOf="@+id/imageView_cover"
 		app:layout_constraintTop_toTopOf="@+id/imageView_cover"
-		tools:text="@sample/titles" />
+		tools:text="@tools:sample/lorem" />
 
 	<RatingBar
 		android:id="@+id/ratingBar"
diff --git a/app/src/main/res/layout/item_search_suggestion_manga_grid.xml b/app/src/main/res/layout/item_search_suggestion_manga_grid.xml
index 0be67d575..21f5c188d 100644
--- a/app/src/main/res/layout/item_search_suggestion_manga_grid.xml
+++ b/app/src/main/res/layout/item_search_suggestion_manga_grid.xml
@@ -23,7 +23,7 @@
 			android:orientation="vertical"
 			android:scaleType="centerCrop"
 			app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover.Small"
-			tools:src="@sample/covers" />
+			tools:src="@tools:sample/backgrounds/scenic" />
 
 		<TextView
 			android:id="@+id/textView_title"
@@ -33,7 +33,7 @@
 			android:ellipsize="end"
 			android:lines="1"
 			android:textAppearance="?attr/textAppearanceLabelSmall"
-			tools:text="@sample/titles" />
+			tools:text="@tools:sample/lorem" />
 
 	</LinearLayout>
 
diff --git a/app/src/main/res/layout/item_shelf.xml b/app/src/main/res/layout/item_shelf.xml
index 4d5d9d2bb..b7d427b8b 100644
--- a/app/src/main/res/layout/item_shelf.xml
+++ b/app/src/main/res/layout/item_shelf.xml
@@ -24,7 +24,7 @@
 			android:layout_height="@dimen/widget_cover_height"
 			android:scaleType="centerCrop"
 			tools:ignore="ContentDescription"
-			tools:src="@sample/covers" />
+			tools:src="@tools:sample/backgrounds/scenic" />
 
 		<TextView
 			android:id="@+id/textView_title"
@@ -35,7 +35,7 @@
 			android:lines="2"
 			android:padding="2dp"
 			android:textColor="?android:attr/textColorPrimary"
-			tools:text="@sample/titles" />
+			tools:text="@tools:sample/lorem" />
 
 	</LinearLayout>
 
diff --git a/app/src/main/res/layout/sheet_scrobbling.xml b/app/src/main/res/layout/sheet_scrobbling.xml
index a79e7ba7d..9fc20a6d0 100644
--- a/app/src/main/res/layout/sheet_scrobbling.xml
+++ b/app/src/main/res/layout/sheet_scrobbling.xml
@@ -33,7 +33,7 @@
 			app:layout_constraintTop_toBottomOf="@id/dragHandle"
 			app:layout_constraintWidth_percent="0.3"
 			app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover"
-			tools:background="@sample/covers[9]"
+			tools:background="@tools:sample/backgrounds/scenic"
 			tools:ignore="ContentDescription,UnusedAttribute" />
 
 		<ImageView
@@ -61,7 +61,7 @@
 			app:layout_constraintEnd_toStartOf="@id/button_menu"
 			app:layout_constraintStart_toEndOf="@id/imageView_cover"
 			app:layout_constraintTop_toBottomOf="@id/dragHandle"
-			tools:text="@sample/titles[9]" />
+			tools:text="@tools:sample/backgrounds/scenic[9]" />
 
 		<ImageButton
 			android:id="@+id/button_menu"