diff --git a/app/src/main/res/drawable/ic_function.xml b/app/src/main/res/drawable/ic_function.xml
new file mode 100644
index 0000000..bf57429
--- /dev/null
+++ b/app/src/main/res/drawable/ic_function.xml
@@ -0,0 +1,52 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="32dp"
+    android:height="32dp"
+    android:viewportWidth="48"
+    android:viewportHeight="48">
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M11,16V42"
+        android:strokeWidth="4"
+        android:strokeColor="#ffffff"
+        android:strokeLineCap="round"
+        android:strokeLineJoin="round" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M24,29V42"
+        android:strokeWidth="4"
+        android:strokeColor="#ffffff"
+        android:strokeLineCap="round"
+        android:strokeLineJoin="round" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M24,19V6"
+        android:strokeWidth="4"
+        android:strokeColor="#ffffff"
+        android:strokeLineCap="round"
+        android:strokeLineJoin="round" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M37,6V32"
+        android:strokeWidth="4"
+        android:strokeColor="#ffffff"
+        android:strokeLineCap="round"
+        android:strokeLineJoin="round" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M11,16C13.761,16 16,13.761 16,11C16,8.239 13.761,6 11,6C8.239,6 6,8.239 6,11C6,13.761 8.239,16 11,16Z"
+        android:strokeWidth="4"
+        android:strokeColor="#ffffff"
+        android:strokeLineJoin="round" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M24,29C26.761,29 29,26.761 29,24C29,21.239 26.761,19 24,19C21.239,19 19,21.239 19,24C19,26.761 21.239,29 24,29Z"
+        android:strokeWidth="4"
+        android:strokeColor="#ffffff"
+        android:strokeLineJoin="round" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M37,42C39.761,42 42,39.761 42,37C42,34.239 39.761,32 37,32C34.239,32 32,34.239 32,37C32,39.761 34.239,42 37,42Z"
+        android:strokeWidth="4"
+        android:strokeColor="#ffffff"
+        android:strokeLineJoin="round" />
+</vector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/ic_home.xml b/app/src/main/res/drawable/ic_home.xml
new file mode 100644
index 0000000..f43c7ea
--- /dev/null
+++ b/app/src/main/res/drawable/ic_home.xml
@@ -0,0 +1,25 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="32dp"
+    android:height="32dp"
+    android:viewportWidth="48"
+    android:viewportHeight="48">
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,18V42H39V18L24,6L9,18Z"
+        android:strokeWidth="4"
+        android:strokeColor="#ffffff"
+        android:strokeLineCap="round"
+        android:strokeLineJoin="round" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29V42H29V29H19Z"
+        android:strokeWidth="4"
+        android:strokeColor="#ffffff"
+        android:strokeLineJoin="round" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,42H39"
+        android:strokeWidth="4"
+        android:strokeColor="#ffffff"
+        android:strokeLineCap="round" />
+</vector>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/ic_preference.xml b/app/src/main/res/drawable/ic_preference.xml
new file mode 100644
index 0000000..be927ab
--- /dev/null
+++ b/app/src/main/res/drawable/ic_preference.xml
@@ -0,0 +1,13 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="32dp"
+    android:height="32dp"
+    android:viewportWidth="48"
+    android:viewportHeight="48">
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M44,16C44,22.627 38.627,28 32,28C29.973,28 28.064,27.497 26.39,26.61L9,44L4,39L21.39,21.61C20.503,19.936 20,18.027 20,16C20,9.373 25.373,4 32,4C34.027,4 35.936,4.502 37.61,5.39L30,13L35,18L42.61,10.39C43.498,12.064 44,13.973 44,16Z"
+        android:strokeWidth="4"
+        android:strokeColor="#ffffff"
+        android:strokeLineCap="round"
+        android:strokeLineJoin="round" />
+</vector>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 816978a..f7b176c 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -187,11 +188,21 @@
                     android:layout_marginBottom="10dp"
                     android:gravity="center|start">
 
-                    <ImageView
+                    <androidx.cardview.widget.CardView
                         android:layout_width="15dp"
                         android:layout_height="15dp"
                         android:layout_marginEnd="10dp"
-                        android:src="@mipmap/ic_basic" />
+                        app:cardBackgroundColor="#009688"
+                        app:cardCornerRadius="50dp"
+                        app:cardElevation="0dp">
+
+                        <ImageView
+                            android:layout_width="match_parent"
+                            android:layout_height="match_parent"
+                            android:layout_gravity="center"
+                            android:padding="2.5dp"
+                            android:src="@drawable/ic_preference" />
+                    </androidx.cardview.widget.CardView>
 
                     <TextView
                         android:layout_width="match_parent"
@@ -337,11 +348,21 @@
                     android:layout_marginBottom="15dp"
                     android:gravity="center|start">
 
-                    <ImageView
+                    <androidx.cardview.widget.CardView
                         android:layout_width="15dp"
                         android:layout_height="15dp"
                         android:layout_marginEnd="10dp"
-                        android:src="@mipmap/ic_control" />
+                        app:cardBackgroundColor="#2196F3"
+                        app:cardCornerRadius="50dp"
+                        app:cardElevation="0dp">
+
+                        <ImageView
+                            android:layout_width="match_parent"
+                            android:layout_height="match_parent"
+                            android:layout_gravity="center"
+                            android:padding="2.5dp"
+                            android:src="@drawable/ic_function" />
+                    </androidx.cardview.widget.CardView>
 
                     <TextView
                         android:layout_width="match_parent"
@@ -427,11 +448,21 @@
                     android:layout_height="wrap_content"
                     android:gravity="center|start">
 
-                    <ImageView
+                    <androidx.cardview.widget.CardView
                         android:layout_width="15dp"
                         android:layout_height="15dp"
                         android:layout_marginEnd="10dp"
-                        android:src="@mipmap/ic_home" />
+                        app:cardBackgroundColor="#FFFF9800"
+                        app:cardCornerRadius="50dp"
+                        app:cardElevation="0dp">
+
+                        <ImageView
+                            android:layout_width="match_parent"
+                            android:layout_height="match_parent"
+                            android:layout_gravity="center"
+                            android:padding="2.5dp"
+                            android:src="@drawable/ic_home" />
+                    </androidx.cardview.widget.CardView>
 
                     <TextView
                         android:layout_width="match_parent"
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_basic.png b/app/src/main/res/mipmap-xxhdpi/ic_basic.png
deleted file mode 100644
index 6b478c1..0000000
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_basic.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_control.png b/app/src/main/res/mipmap-xxhdpi/ic_control.png
deleted file mode 100644
index 233c29b..0000000
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_control.png and /dev/null differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_home.png b/app/src/main/res/mipmap-xxhdpi/ic_home.png
deleted file mode 100644
index 4e51dfa..0000000
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_home.png and /dev/null differ