diff --git a/app/src/main/res/drawable/ic_launcher_background.xml b/app/src/main/res/drawable/ic_launcher_background.xml
index 835b911..1bfaa55 100644
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@@ -5,7 +5,7 @@
     android:viewportWidth="108"
     android:viewportHeight="108">
     <path
-        android:fillColor="#455694"
+        android:fillColor="@color/colorPrimary"
         android:pathData="M0,0h108v108h-108z" />
 
 </vector>
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 986c0a3..3f2a6fe 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -57,6 +57,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:backgroundTint="#4CAF50"
+            android:textColor="#FFFFFF"
             android:text="@string/btn_start"
             android:textAllCaps="false" />
 
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 1e01e11..fd079d4 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="colorPrimary">#1D1D1D</color>
-    <color name="colorPrimaryDark">#1D1D1D</color>
+    <color name="colorPrimary">#465AA0</color>
     <color name="colorAccent">#D81B60</color>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 1d58761..2a3aeef 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -2,7 +2,7 @@
     <!-- Base application theme. -->
     <style name="Theme.Gost" parent="Theme.AppCompat.Light.DarkActionBar">
         <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorPrimaryDark">@color/colorPrimary</item>
         <item name="colorAccent">@color/colorAccent</item>
     </style>
 </resources>
\ No newline at end of file