change colorscheme

app/src/main/res/values/colors.xml

 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="colorPrimary">#6200EE</color>
-    <color name="colorPrimaryDark">#3700B3</color>
-    <color name="colorAccent">#03DAC5</color>
+    <color name="colorPrimary">#2196F3</color>
+    <color name="colorPrimaryDark">#1565C0</color>
+    <color name="colorSecondary">#F9A825</color>
 </resources>
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app/src/main/res/values/styles.xml

 <resources>
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.MaterialComponents.Light">
+    <style name="AppTheme" parent="Theme.MaterialComponents.Light.DarkActionBar">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
-        <item name="colorAccent">@color/colorAccent</item>
+        <item name="colorSecondary">@color/colorSecondary</item>
     </style>
 
 </resources>
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