Adjust card elevation

app/src/main/res/layout/gallery_detail_header.xml

@@ -40,7 +40,7 @@
 
         <Space
             android:layout_width="match_parent"
-            android:layout_height="26dp"/>
+            android:layout_height="24dp"/>
 
     </LinearLayout>
 

app/src/main/res/layout/item_download.xml

@@ -20,6 +20,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:layout_margin="2dp"
     style="@style/CardView.Reactive">
 
     <RelativeLayout

app/src/main/res/layout/item_gallery_grid.xml

@@ -20,6 +20,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:layout_margin="2dp"
     style="@style/CardView.Normal">
 
     <com.hippo.ehviewer.widget.TileThumb

app/src/main/res/layout/item_gallery_list.xml

@@ -19,6 +19,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:layout_margin="2dp"
     style="@style/CardView.Reactive">
 
     <RelativeLayout

app/src/main/res/layout/search_category.xml

@@ -18,6 +18,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:layout_margin="2dp"
     style="@style/CardView.Normal">
 
     <LinearLayout

app/src/main/res/values/dimens.xml

@@ -52,7 +52,7 @@
     <dimen name="gallery_grid_margin_v">4dp</dimen>
 
     <!-- 8dp - 4dp, 4dp for card padding -->
-    <dimen name="gallery_search_bar_margin_h">4dp</dimen>
+    <dimen name="gallery_search_bar_margin_h">6dp</dimen>
     <!-- 12dp - 4dp, 4dp for card padding -->
     <dimen name="gallery_search_bar_margin_v">8dp</dimen>
 

app/src/main/res/values/styles.xml

@@ -141,8 +141,8 @@
     <style name="CardView.Normal">
         <item name="cardCornerRadius">2dp</item>
         <item name="cardUseCompatPadding">true</item>
-        <item name="cardElevation">4dp</item>
-        <item name="cardMaxElevation">4dp</item>
+        <item name="cardElevation">2dp</item>
+        <item name="cardMaxElevation">2dp</item>
         <item name="cardPreventCornerOverlap">true</item>
         <item name="cardBackgroundColor">?attr/contentColorPrimary</item>
         <item name="contentPadding">0dp</item>