diff --git a/app/src/main/java/ua/acclorite/book_story/ui/theme/Color.kt b/app/src/main/java/ua/acclorite/book_story/ui/theme/Color.kt
index c60ca16f..ee98f1f6 100644
--- a/app/src/main/java/ua/acclorite/book_story/ui/theme/Color.kt
+++ b/app/src/main/java/ua/acclorite/book_story/ui/theme/Color.kt
@@ -10,6 +10,7 @@ import ua.acclorite.book_story.ui.theme.color.aquaTheme
 import ua.acclorite.book_story.ui.theme.color.blackTheme
 import ua.acclorite.book_story.ui.theme.color.blueTheme
 import ua.acclorite.book_story.ui.theme.color.dynamicTheme
+import ua.acclorite.book_story.ui.theme.color.greenGrayTheme
 import ua.acclorite.book_story.ui.theme.color.greenTheme
 import ua.acclorite.book_story.ui.theme.color.lavenderTheme
 import ua.acclorite.book_story.ui.theme.color.marshTheme
@@ -31,6 +32,7 @@ enum class Theme(
     DYNAMIC(hasThemeContrast = false, title = R.string.dynamic_theme),
     BLUE(hasThemeContrast = true, title = R.string.blue_theme),
     GREEN(hasThemeContrast = true, title = R.string.green_theme),
+    GREEN_GRAY(hasThemeContrast = false, title = R.string.green_gray_theme),
     MARSH(hasThemeContrast = true, title = R.string.marsh_theme),
     RED(hasThemeContrast = true, title = R.string.red_theme),
     RED_GRAY(hasThemeContrast = false, title = R.string.red_gray_theme),
@@ -100,6 +102,11 @@ fun colorScheme(
             greenTheme(isDark = darkTheme, themeContrast = themeContrast)
         }
 
+        Theme.GREEN_GRAY -> {
+            /* Green Gray Theme */
+            greenGrayTheme(isDark = darkTheme)
+        }
+
         Theme.MARSH -> {
             /* Marsh Theme */
             marshTheme(isDark = darkTheme, themeContrast = themeContrast)
diff --git a/app/src/main/java/ua/acclorite/book_story/ui/theme/color/GreenGrayTheme.kt b/app/src/main/java/ua/acclorite/book_story/ui/theme/color/GreenGrayTheme.kt
new file mode 100644
index 00000000..d53ec1d9
--- /dev/null
+++ b/app/src/main/java/ua/acclorite/book_story/ui/theme/color/GreenGrayTheme.kt
@@ -0,0 +1,162 @@
+package ua.acclorite.book_story.ui.theme.color
+
+import androidx.compose.material3.ColorScheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.graphics.Color
+
+private val primaryLight = Color(0xFF52564B)
+private val onPrimaryLight = Color(0xFFFFFFFF)
+private val primaryContainerLight = Color(0xFFC7CBBC)
+private val onPrimaryContainerLight = Color(0xFF161B12)
+private val secondaryLight = Color(0xFF5B6055)
+private val onSecondaryLight = Color(0xFFFFFFFF)
+private val secondaryContainerLight = Color(0xFFE0E4D6)
+private val onSecondaryContainerLight = Color(0xFF191D14)
+private val tertiaryLight = Color(0xFF56624A)
+private val onTertiaryLight = Color(0xFFFFFFFF)
+private val tertiaryContainerLight = Color(0xFFDAE7C9)
+private val onTertiaryContainerLight = Color(0xFF141E0C)
+private val errorLight = Color(0xFFB3261E)
+private val onErrorLight = Color(0xFFFFFFFF)
+private val errorContainerLight = Color(0xFFF9DEDC)
+private val onErrorContainerLight = Color(0xFF410E0B)
+private val backgroundLight = Color(0xFFFCF9F6)
+private val onBackgroundLight = Color(0xFF1B1C1A)
+private val surfaceLight = Color(0xFFFCF9F6)
+private val onSurfaceLight = Color(0xFF1B1C1A)
+private val surfaceVariantLight = Color(0xFFE4E2DE)
+private val onSurfaceVariantLight = Color(0xFF474744)
+private val outlineLight = Color(0xFF777673)
+private val outlineVariantLight = Color(0xFFC8C6C3)
+private val scrimLight = Color(0xFF000000)
+private val inverseSurfaceLight = Color(0xFF30302E)
+private val inverseOnSurfaceLight = Color(0xFFF3F0ED)
+private val inversePrimaryLight = Color(0xFFAEB2A4)
+private val surfaceDimLight = Color(0xFFDCD9D7)
+private val surfaceBrightLight = Color(0xFFFCF9F6)
+private val surfaceContainerLowestLight = Color(0xFFFFFFFF)
+private val surfaceContainerLowLight = Color(0xFFF6F3F0)
+private val surfaceContainerLight = Color(0xFFF0EDEA)
+private val surfaceContainerHighLight = Color(0xFFEBE8E5)
+private val surfaceContainerHighestLight = Color(0xFFE4E2DE)
+
+
+private val primaryDark = Color(0xFFAEB2A4)
+private val onPrimaryDark = Color(0xFF292E24)
+private val primaryContainerDark = Color(0xFF3D4237)
+private val onPrimaryContainerDark = Color(0xFFC7CBBC)
+private val secondaryDark = Color(0xFFC4C8BA)
+private val onSecondaryDark = Color(0xFF2D3228)
+private val secondaryContainerDark = Color(0xFF44483E)
+private val onSecondaryContainerDark = Color(0xFFE0E4D6)
+private val tertiaryDark = Color(0xFFBECBAE)
+private val onTertiaryDark = Color(0xFF29341F)
+private val tertiaryContainerDark = Color(0xFF3F4A34)
+private val onTertiaryContainerDark = Color(0xFFDAE7C9)
+private val errorDark = Color(0xFFF2B8B5)
+private val onErrorDark = Color(0xFF601410)
+private val errorContainerDark = Color(0xFF8C1D18)
+private val onErrorContainerDark = Color(0xFFF9DEDC)
+private val backgroundDark = Color(0xFF131312)
+private val onBackgroundDark = Color(0xFFE4E2DE)
+private val surfaceDark = Color(0xFF101010)
+private val onSurfaceDark = Color(0xFFE4E2DE)
+private val surfaceVariantDark = Color(0xFF474744)
+private val onSurfaceVariantDark = Color(0xFFC8C6C3)
+private val outlineDark = Color(0xFF92918D)
+private val outlineVariantDark = Color(0xFF474744)
+private val scrimDark = Color(0xFF000000)
+private val inverseSurfaceDark = Color(0xFFE4E2DE)
+private val inverseOnSurfaceDark = Color(0xFF30302E)
+private val inversePrimaryDark = Color(0xFF52564B)
+private val surfaceDimDark = Color(0xFF131312)
+private val surfaceBrightDark = Color(0xFF3A3937)
+private val surfaceContainerLowestDark = Color(0xFF0A0A09)
+private val surfaceContainerLowDark = Color(0xFF1B1C1A)
+private val surfaceContainerDark = Color(0xFF20201E)
+private val surfaceContainerHighDark = Color(0xFF2A2A28)
+private val surfaceContainerHighestDark = Color(0xFF353533)
+
+
+@Composable
+fun greenGrayTheme(isDark: Boolean): ColorScheme {
+    return if (isDark) {
+        darkColorScheme(
+            primary = primaryDark,
+            onPrimary = onPrimaryDark,
+            primaryContainer = primaryContainerDark,
+            onPrimaryContainer = onPrimaryContainerDark,
+            secondary = secondaryDark,
+            onSecondary = onSecondaryDark,
+            secondaryContainer = secondaryContainerDark,
+            onSecondaryContainer = onSecondaryContainerDark,
+            tertiary = tertiaryDark,
+            onTertiary = onTertiaryDark,
+            tertiaryContainer = tertiaryContainerDark,
+            onTertiaryContainer = onTertiaryContainerDark,
+            error = errorDark,
+            onError = onErrorDark,
+            errorContainer = errorContainerDark,
+            onErrorContainer = onErrorContainerDark,
+            background = backgroundDark,
+            onBackground = onBackgroundDark,
+            surface = surfaceDark,
+            onSurface = onSurfaceDark,
+            surfaceVariant = surfaceVariantDark,
+            onSurfaceVariant = onSurfaceVariantDark,
+            outline = outlineDark,
+            outlineVariant = outlineVariantDark,
+            scrim = scrimDark,
+            inverseSurface = inverseSurfaceDark,
+            inverseOnSurface = inverseOnSurfaceDark,
+            inversePrimary = inversePrimaryDark,
+            surfaceDim = surfaceDimDark,
+            surfaceBright = surfaceBrightDark,
+            surfaceContainerLowest = surfaceContainerLowestDark,
+            surfaceContainerLow = surfaceContainerLowDark,
+            surfaceContainer = surfaceContainerDark,
+            surfaceContainerHigh = surfaceContainerHighDark,
+            surfaceContainerHighest = surfaceContainerHighestDark,
+        )
+    } else {
+        lightColorScheme(
+            primary = primaryLight,
+            onPrimary = onPrimaryLight,
+            primaryContainer = primaryContainerLight,
+            onPrimaryContainer = onPrimaryContainerLight,
+            secondary = secondaryLight,
+            onSecondary = onSecondaryLight,
+            secondaryContainer = secondaryContainerLight,
+            onSecondaryContainer = onSecondaryContainerLight,
+            tertiary = tertiaryLight,
+            onTertiary = onTertiaryLight,
+            tertiaryContainer = tertiaryContainerLight,
+            onTertiaryContainer = onTertiaryContainerLight,
+            error = errorLight,
+            onError = onErrorLight,
+            errorContainer = errorContainerLight,
+            onErrorContainer = onErrorContainerLight,
+            background = backgroundLight,
+            onBackground = onBackgroundLight,
+            surface = surfaceLight,
+            onSurface = onSurfaceLight,
+            surfaceVariant = surfaceVariantLight,
+            onSurfaceVariant = onSurfaceVariantLight,
+            outline = outlineLight,
+            outlineVariant = outlineVariantLight,
+            scrim = scrimLight,
+            inverseSurface = inverseSurfaceLight,
+            inverseOnSurface = inverseOnSurfaceLight,
+            inversePrimary = inversePrimaryLight,
+            surfaceDim = surfaceDimLight,
+            surfaceBright = surfaceBrightLight,
+            surfaceContainerLowest = surfaceContainerLowestLight,
+            surfaceContainerLow = surfaceContainerLowLight,
+            surfaceContainer = surfaceContainerLight,
+            surfaceContainerHigh = surfaceContainerHighLight,
+            surfaceContainerHighest = surfaceContainerHighestLight,
+        )
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/values-uk/strings.xml b/app/src/main/res/values-uk/strings.xml
index bf8d7470..2195194a 100644
--- a/app/src/main/res/values-uk/strings.xml
+++ b/app/src/main/res/values-uk/strings.xml
@@ -290,6 +290,7 @@
     <string name="dynamic_theme">Меркурій</string>
     <string name="blue_theme">Нептун</string>
     <string name="green_theme">Земля</string>
+    <string name="green_gray_theme">Енцелад</string>
     <string name="red_theme">Марс</string>
     <string name="red_gray_theme">Каллісто</string>
     <string name="purple_theme">Юпітер</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index b362f7da..415aee4a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -349,6 +349,7 @@
     <string name="dynamic_theme">Mercury</string>
     <string name="blue_theme">Neptune</string>
     <string name="green_theme">Earth</string>
+    <string name="green_gray_theme">Enceladus</string>
     <string name="red_theme">Mars</string>
     <string name="red_gray_theme">Callisto</string>
     <string name="purple_theme">Jupiter</string>