diff --git a/app/src/main/res/drawable/bg_shadow_bottom.png b/app/src/main/res/drawable/bg_shadow_bottom.png
deleted file mode 100644
index ac0124b67..000000000
Binary files a/app/src/main/res/drawable/bg_shadow_bottom.png and /dev/null differ
diff --git a/app/src/main/res/drawable/bg_shadow_bottom.xml b/app/src/main/res/drawable/bg_shadow_bottom.xml
new file mode 100644
index 000000000..88abc41aa
--- /dev/null
+++ b/app/src/main/res/drawable/bg_shadow_bottom.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <!--实现应用背景颜色渐变-->
+    <gradient
+        android:startColor="#4D000000"
+        android:endColor="#00000000"
+        android:angle="90" />
+</shape>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/bg_shadow_bottom_night.png b/app/src/main/res/drawable/bg_shadow_bottom_night.png
deleted file mode 100644
index c3036b036..000000000
Binary files a/app/src/main/res/drawable/bg_shadow_bottom_night.png and /dev/null differ
diff --git a/app/src/main/res/drawable/bg_shadow_bottom_night.xml b/app/src/main/res/drawable/bg_shadow_bottom_night.xml
new file mode 100644
index 000000000..de0d552f3
--- /dev/null
+++ b/app/src/main/res/drawable/bg_shadow_bottom_night.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <!--实现应用背景颜色渐变-->
+    <gradient
+        android:startColor="#4DFFFFFF"
+        android:endColor="#00FFFFFF"
+        android:angle="90" />
+</shape>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/bg_shadow_top.png b/app/src/main/res/drawable/bg_shadow_top.png
deleted file mode 100644
index cb8fee03d..000000000
Binary files a/app/src/main/res/drawable/bg_shadow_top.png and /dev/null differ
diff --git a/app/src/main/res/drawable/bg_shadow_top.xml b/app/src/main/res/drawable/bg_shadow_top.xml
new file mode 100644
index 000000000..067790cc9
--- /dev/null
+++ b/app/src/main/res/drawable/bg_shadow_top.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <!--实现应用背景颜色渐变-->
+    <gradient
+        android:startColor="#4D000000"
+        android:endColor="#00000000"
+        android:angle="270" />
+</shape>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/bg_shadow_top_night.png b/app/src/main/res/drawable/bg_shadow_top_night.png
deleted file mode 100644
index 7984c35db..000000000
Binary files a/app/src/main/res/drawable/bg_shadow_top_night.png and /dev/null differ
diff --git a/app/src/main/res/drawable/bg_shadow_top_night.xml b/app/src/main/res/drawable/bg_shadow_top_night.xml
new file mode 100644
index 000000000..3e776dbad
--- /dev/null
+++ b/app/src/main/res/drawable/bg_shadow_top_night.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <!--实现应用背景颜色渐变-->
+    <gradient
+        android:startColor="#4DFFFFFF"
+        android:endColor="#00FFFFFF"
+        android:angle="270" />
+</shape>
\ No newline at end of file