diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index b849470..626ea25 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -2,12 +2,12 @@
     <!-- Base application theme. -->
     <style name="Theme.Moya" parent="Theme.MaterialComponents.DayNight.NoActionBar">
         <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_500</item>
-        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorPrimary">@color/gray</item>
+        <item name="colorPrimaryVariant">@color/gray</item>
         <item name="colorOnPrimary">@color/white</item>
         <!-- Secondary brand color. -->
-        <item name="colorSecondary">@color/teal_200</item>
-        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorSecondary">@color/gray</item>
+        <item name="colorSecondaryVariant">@color/gray</item>
         <item name="colorOnSecondary">@color/black</item>
         <!-- Status bar color. -->
         <item name="android:statusBarColor">@color/white</item>