diff --git a/app/src/main/ic_laogai_icon-playstore.png b/app/src/main/ic_laogai_icon-playstore.png
new file mode 100644
index 0000000..31cd7f5
Binary files /dev/null and b/app/src/main/ic_laogai_icon-playstore.png differ
diff --git a/app/src/main/ic_laogai_icon-web.png b/app/src/main/ic_laogai_icon-web.png
deleted file mode 100644
index 08c2458..0000000
Binary files a/app/src/main/ic_laogai_icon-web.png and /dev/null differ
diff --git a/app/src/main/res/drawable/background_splash.xml b/app/src/main/res/drawable/background_splash.xml
index 1fe75fc..5924faa 100644
--- a/app/src/main/res/drawable/background_splash.xml
+++ b/app/src/main/res/drawable/background_splash.xml
@@ -6,7 +6,7 @@
     <item android:gravity="center" android:width="144dp" android:height="144dp">
         <bitmap
                 android:gravity="fill_horizontal|fill_vertical"
-                android:src="@mipmap/ic_laogai_icon_splash"/>
+                android:src="@drawable/ic_splash_logo"/>
     </item>
 
 </layer-list>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/ic_splash_logo.png b/app/src/main/res/drawable/ic_splash_logo.png
new file mode 100644
index 0000000..ca96108
Binary files /dev/null and b/app/src/main/res/drawable/ic_splash_logo.png differ
diff --git a/app/src/main/res/layouts/fragments/layout/fragment_on_welcome.xml b/app/src/main/res/layouts/fragments/layout/fragment_on_welcome.xml
index 239f344..691ad18 100644
--- a/app/src/main/res/layouts/fragments/layout/fragment_on_welcome.xml
+++ b/app/src/main/res/layouts/fragments/layout/fragment_on_welcome.xml
@@ -10,17 +10,17 @@
             android:layout_height="match_parent">
 
         <ImageView
-                android:id="@+id/logo"
-                android:layout_width="256dp"
-                android:layout_height="256dp"
-                android:contentDescription="@string/app_name"
-                android:scaleType="fitCenter"
-                app:layout_constraintBottom_toTopOf="@+id/linearLayout3"
-                app:layout_constraintEnd_toEndOf="parent"
-                app:layout_constraintHorizontal_bias="0.5"
-                app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintTop_toTopOf="parent"
-                app:srcCompat="@mipmap/ic_launcher_foreground" />
+            android:id="@+id/logo"
+            android:layout_width="256dp"
+            android:layout_height="256dp"
+            android:contentDescription="@string/app_name"
+            android:scaleType="fitCenter"
+            app:layout_constraintBottom_toTopOf="@+id/linearLayout3"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:srcCompat="@mipmap/ic_laogai_icon_foreground" />
 
         <LinearLayout
                 android:id="@+id/linearLayout3"
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_laogai_icon.xml b/app/src/main/res/mipmap-anydpi-v26/ic_laogai_icon.xml
index 036d09b..0b0b5f2 100644
--- a/app/src/main/res/mipmap-anydpi-v26/ic_laogai_icon.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_laogai_icon.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background"/>
-    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+    <background android:drawable="@color/ic_laogai_icon_background"/>
+    <foreground android:drawable="@mipmap/ic_laogai_icon_foreground"/>
 </adaptive-icon>
\ No newline at end of file
diff --git a/app/src/main/res/mipmap-hdpi/ic_laogai_icon.png b/app/src/main/res/mipmap-hdpi/ic_laogai_icon.png
index 51a9b20..ced162e 100644
Binary files a/app/src/main/res/mipmap-hdpi/ic_laogai_icon.png and b/app/src/main/res/mipmap-hdpi/ic_laogai_icon.png differ
diff --git a/app/src/main/res/mipmap-hdpi/ic_laogai_icon_foreground.png b/app/src/main/res/mipmap-hdpi/ic_laogai_icon_foreground.png
new file mode 100644
index 0000000..43e6b18
Binary files /dev/null and b/app/src/main/res/mipmap-hdpi/ic_laogai_icon_foreground.png differ
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png b/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png
deleted file mode 100644
index 11bc559..0000000
Binary files a/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_laogai_icon.png b/app/src/main/res/mipmap-mdpi/ic_laogai_icon.png
index 146265a..2ff86b9 100644
Binary files a/app/src/main/res/mipmap-mdpi/ic_laogai_icon.png and b/app/src/main/res/mipmap-mdpi/ic_laogai_icon.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_laogai_icon_foreground.png b/app/src/main/res/mipmap-mdpi/ic_laogai_icon_foreground.png
new file mode 100644
index 0000000..83df42a
Binary files /dev/null and b/app/src/main/res/mipmap-mdpi/ic_laogai_icon_foreground.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_laogai_icon_splash.png b/app/src/main/res/mipmap-mdpi/ic_laogai_icon_splash.png
deleted file mode 100644
index 4255977..0000000
Binary files a/app/src/main/res/mipmap-mdpi/ic_laogai_icon_splash.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png b/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png
deleted file mode 100644
index a5db2ba..0000000
Binary files a/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_laogai_icon.png b/app/src/main/res/mipmap-xhdpi/ic_laogai_icon.png
index 8644cf2..78f5e1e 100644
Binary files a/app/src/main/res/mipmap-xhdpi/ic_laogai_icon.png and b/app/src/main/res/mipmap-xhdpi/ic_laogai_icon.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_laogai_icon_foreground.png b/app/src/main/res/mipmap-xhdpi/ic_laogai_icon_foreground.png
new file mode 100644
index 0000000..8395710
Binary files /dev/null and b/app/src/main/res/mipmap-xhdpi/ic_laogai_icon_foreground.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png b/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png
deleted file mode 100644
index 2b0c162..0000000
Binary files a/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_laogai_icon.png b/app/src/main/res/mipmap-xxhdpi/ic_laogai_icon.png
index 4255977..ca96108 100644
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_laogai_icon.png and b/app/src/main/res/mipmap-xxhdpi/ic_laogai_icon.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_laogai_icon_foreground.png b/app/src/main/res/mipmap-xxhdpi/ic_laogai_icon_foreground.png
new file mode 100644
index 0000000..6161c83
Binary files /dev/null and b/app/src/main/res/mipmap-xxhdpi/ic_laogai_icon_foreground.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png
deleted file mode 100644
index 4d419b1..0000000
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_laogai_icon.png b/app/src/main/res/mipmap-xxxhdpi/ic_laogai_icon.png
index 49ccb84..e1f4451 100644
Binary files a/app/src/main/res/mipmap-xxxhdpi/ic_laogai_icon.png and b/app/src/main/res/mipmap-xxxhdpi/ic_laogai_icon.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_laogai_icon_foreground.png b/app/src/main/res/mipmap-xxxhdpi/ic_laogai_icon_foreground.png
new file mode 100644
index 0000000..8f06c7e
Binary files /dev/null and b/app/src/main/res/mipmap-xxxhdpi/ic_laogai_icon_foreground.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png
deleted file mode 100644
index 8cb1cf1..0000000
Binary files a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png and /dev/null differ
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 0d0f8cb..6bf9997 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -3,7 +3,7 @@
     <color name="colorPrimary">#009688</color>
     <color name="colorPrimaryDark">#009688</color>
     <color name="colorAccent">#0096ff</color>
-    <color name="ic_launcher_background">#ffffff</color>
+    <color name="ic_laogai_icon_background">#ffffff</color>
 
     <!--theme color section, not the working colors-->
     <color name="themePrimaryDark">#000000</color>
diff --git a/etc/drawable_resources/laogai_icon.svg b/etc/drawable_resources/laogai_icon.svg
new file mode 100644
index 0000000..40f4fe9
--- /dev/null
+++ b/etc/drawable_resources/laogai_icon.svg
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   version="1.0"
+   width="121"
+   height="219"
+   id="svg92"
+   viewBox="0 0 121.0 219"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs6">
+    <clipPath
+       clipPathUnits="userSpaceOnUse"
+       id="clipEmfPath1">
+      <path
+         d="M -0.33333333,0 H 1087.3333 V 232 H -0.33333333 Z"
+         id="path2" />
+    </clipPath>
+    <pattern
+       id="EMFhbasepattern"
+       patternUnits="userSpaceOnUse"
+       width="6"
+       height="6"
+       x="0"
+       y="0" />
+  </defs>
+  <g
+     id="g60"
+     transform="matrix(1.0027625,0,0,1.0015244,-19.720996,-9.0137196)">
+    <path
+       style="opacity:0.993;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;image-rendering:auto"
+       clip-path="url(#clipEmfPath1)"
+       d="m 103.66667,16 v 0 0 40.333333 c 12,6.666667 21.66666,19 21.66666,46.999997 0,28 -14.33333,45 -21.66666,50.33334 v 36 l 36.66666,-12.33334 V 9 Z"
+       id="path8" />
+    <path
+       style="fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none"
+       clip-path="url(#clipEmfPath1)"
+       d="M 64.666667,56.666667 V 15.333333 l -45,8 v 0 0 204.333337 l 45,-15.66667 V 169 C 52,162.66667 38.333333,147.33333 38.333333,116.33333 38.333333,85.333333 53.666667,65 64.666667,56.666667 Z"
+       id="path10" />
+    <path
+       style="fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none"
+       clip-path="url(#clipEmfPath1)"
+       d="M 75.333333,68.666667 V 158 c 11.333334,-4.33333 25.333337,-20 25.333337,-49 0,-32.909003 -12.564687,-42.347858 -25.328763,-44.875741 0.01241,1.916829 -0.005,1.98343 -0.0046,4.542408 z"
+       id="path90" />
+  </g>
+</svg>