style: make changes in the ui layout

Author: Njumbi

app/src/main/res/values-night/themes.xml

@@ -1,9 +1,9 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
-    <style name="Theme.Diff_Utils_Recyclerview_Example" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+    <style name="Theme.Diff_Utils_Recyclerview_Example" parent="Theme.MaterialComponents.Light.NoActionBar">
         <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_200</item>
-        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorPrimary">@color/white</item>
+        <item name="colorPrimaryVariant">@color/black</item>
         <item name="colorOnPrimary">@color/black</item>
         <!-- Secondary brand color. -->
         <item name="colorSecondary">@color/teal_200</item>

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

@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="purple_200">#FFBB86FC</color>
-    <color name="purple_500">#FF6200EE</color>
-    <color name="purple_700">#FF3700B3</color>
     <color name="teal_200">#FF03DAC5</color>
     <color name="teal_700">#FF018786</color>
     <color name="black">#FF000000</color>

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

@@ -1,9 +1,9 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
-    <style name="Theme.Diff_Utils_Recyclerview_Example" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+    <style name="Theme.Diff_Utils_Recyclerview_Example" parent="Theme.MaterialComponents.Light.NoActionBar">
         <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_500</item>
-        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorPrimary">@color/white</item>
+        <item name="colorPrimaryVariant">@color/black</item>
         <item name="colorOnPrimary">@color/white</item>
         <!-- Secondary brand color. -->
         <item name="colorSecondary">@color/teal_200</item>