diff --git a/app/src/main/res/drawable-xhdpi/new_fast_click.png b/app/src/main/res/drawable-xhdpi/new_fast_click.png
deleted file mode 100644
index 31d6e01..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_fast_click.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/new_fast_white.png b/app/src/main/res/drawable-xhdpi/new_fast_white.png
deleted file mode 100644
index 0e45d24..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_fast_white.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/new_full.png b/app/src/main/res/drawable-xhdpi/new_full.png
deleted file mode 100644
index 31d580c..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_full.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/new_full_white.png b/app/src/main/res/drawable-xhdpi/new_full_white.png
deleted file mode 100644
index 57bce24..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_full_white.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/new_slow_click.png b/app/src/main/res/drawable-xhdpi/new_slow_click.png
deleted file mode 100644
index a42ea3f..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_slow_click.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/new_slow_white.png b/app/src/main/res/drawable-xhdpi/new_slow_white.png
deleted file mode 100644
index 18c8de4..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_slow_white.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/new_snapshot_click.png b/app/src/main/res/drawable-xhdpi/new_snapshot_click.png
deleted file mode 100644
index 4534774..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_snapshot_click.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/new_snapshot_white.png b/app/src/main/res/drawable-xhdpi/new_snapshot_white.png
deleted file mode 100644
index 6efc5ca..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_snapshot_white.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/new_stretch_click.png b/app/src/main/res/drawable-xhdpi/new_stretch_click.png
deleted file mode 100644
index adc06e5..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_stretch_click.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/new_stretch_white.png b/app/src/main/res/drawable-xhdpi/new_stretch_white.png
deleted file mode 100644
index bfa52a1..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_stretch_white.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/new_videotape_click.png b/app/src/main/res/drawable-xhdpi/new_videotape_click.png
deleted file mode 100644
index ce8875c..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_videotape_click.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/new_videotape_white.png b/app/src/main/res/drawable-xhdpi/new_videotape_white.png
deleted file mode 100644
index 144460f..0000000
Binary files a/app/src/main/res/drawable-xhdpi/new_videotape_white.png and /dev/null differ
diff --git a/app/src/main/res/drawable/anim.xml b/app/src/main/res/drawable/anim.xml
deleted file mode 100644
index 436c48c..0000000
--- a/app/src/main/res/drawable/anim.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<animated-rotate xmlns:android="http://schemas.android.com/apk/res/android"
-    android:drawable="@drawable/loading"
-    android:fromDegrees="0.0"
-    android:pivotX="50.0%"
-    android:pivotY="50.0%"
-    android:toDegrees="360.0" />
diff --git a/app/src/main/res/drawable/loading.gif b/app/src/main/res/drawable/loading.gif
deleted file mode 100644
index 06e31fd..0000000
Binary files a/app/src/main/res/drawable/loading.gif and /dev/null differ
diff --git a/app/src/main/res/drawable/new_fast_btn.xml b/app/src/main/res/drawable/new_fast_btn.xml
deleted file mode 100644
index 2930484..0000000
--- a/app/src/main/res/drawable/new_fast_btn.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@drawable/new_fast_click" android:state_pressed="true"></item>
-    <item android:drawable="@drawable/new_fast_white" android:state_selected="true"></item>
-    <item android:drawable="@drawable/new_fast_white" android:state_enabled="true"></item>
-    <item android:drawable="@drawable/new_fast_white"></item>
-</selector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/new_slow_btn.xml b/app/src/main/res/drawable/new_slow_btn.xml
deleted file mode 100644
index fec94ab..0000000
--- a/app/src/main/res/drawable/new_slow_btn.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@drawable/new_slow_click" android:state_pressed="true"></item>
-    <item android:drawable="@drawable/new_slow_white" android:state_selected="true"></item>
-    <item android:drawable="@drawable/new_slow_white" android:state_enabled="true"></item>
-    <item android:drawable="@drawable/new_slow_white"></item>
-</selector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/new_snapshot_btn.xml b/app/src/main/res/drawable/new_snapshot_btn.xml
deleted file mode 100644
index 310785f..0000000
--- a/app/src/main/res/drawable/new_snapshot_btn.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@drawable/new_snapshot_click" android:state_pressed="true"></item>
-    <item android:drawable="@drawable/new_snapshot_white" android:state_selected="true"></item>
-    <item android:drawable="@drawable/new_snapshot_white" android:state_enabled="true"></item>
-    <item android:drawable="@drawable/new_snapshot_white"></item>
-</selector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/new_stretch_btn.xml b/app/src/main/res/drawable/new_stretch_btn.xml
deleted file mode 100644
index 816dda3..0000000
--- a/app/src/main/res/drawable/new_stretch_btn.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@drawable/new_stretch_click" android:state_pressed="true"></item>
-    <item android:drawable="@drawable/new_stretch_white" android:state_selected="true"></item>
-    <item android:drawable="@drawable/new_stretch_white" android:state_enabled="true"></item>
-    <item android:drawable="@drawable/new_stretch_white"></item>
-</selector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/new_videotape_btn.xml b/app/src/main/res/drawable/new_videotape_btn.xml
deleted file mode 100644
index 67ca41b..0000000
--- a/app/src/main/res/drawable/new_videotape_btn.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@drawable/new_videotape_click" android:state_pressed="true"></item>
-    <item android:drawable="@drawable/new_videotape_white" android:state_selected="true"></item>
-    <item android:drawable="@drawable/new_videotape_white" android:state_enabled="true"></item>
-    <item android:drawable="@drawable/new_videotape_white"></item>
-</selector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/red_dot.xml b/app/src/main/res/drawable/red_dot.xml
deleted file mode 100644
index 97bad9f..0000000
--- a/app/src/main/res/drawable/red_dot.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval" >
-<size android:height="10dp" android:width="10dp"></size>
-    <solid android:color="#ff0000"></solid>
-</shape>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/transparent_dot.xml b/app/src/main/res/drawable/transparent_dot.xml
deleted file mode 100644
index 9db24c6..0000000
--- a/app/src/main/res/drawable/transparent_dot.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval" >
-<size android:height="10dp" android:width="10dp"></size>
-    <solid android:color="#00000000"></solid>
-</shape>
\ No newline at end of file
diff --git a/app/src/main/res/layout/change_camera_param.xml b/app/src/main/res/layout/change_camera_param.xml
deleted file mode 100644
index 61a4490..0000000
--- a/app/src/main/res/layout/change_camera_param.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout
-    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/mipmap-hdpi/ic_arrow_down.png b/app/src/main/res/mipmap-hdpi/ic_arrow_down.png
deleted file mode 100644
index 144c682..0000000
Binary files a/app/src/main/res/mipmap-hdpi/ic_arrow_down.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-hdpi/ic_light.png b/app/src/main/res/mipmap-hdpi/ic_light.png
deleted file mode 100644
index 5abffcc..0000000
Binary files a/app/src/main/res/mipmap-hdpi/ic_light.png and /dev/null differ
diff --git a/app/src/main/res/xml/device_filter.xml b/app/src/main/res/xml/device_filter.xml
deleted file mode 100644
index d4e05d9..0000000
--- a/app/src/main/res/xml/device_filter.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<usb>
-	<usb-device class="239" subclass="2" />	<!-- all device of UVC -->
-</usb>