diff --git a/app/src/main/java/io/github/wulkanowy/data/db/Converters.kt b/app/src/main/java/io/github/wulkanowy/data/db/Converters.kt
index f0d11b26..73a04d23 100644
--- a/app/src/main/java/io/github/wulkanowy/data/db/Converters.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/Converters.kt
@@ -1,6 +1,8 @@
 package io.github.wulkanowy.data.db
 
 import androidx.room.TypeConverter
+import com.google.gson.Gson
+import com.google.gson.reflect.TypeToken
 import org.threeten.bp.DateTimeUtils
 import org.threeten.bp.Instant
 import org.threeten.bp.LocalDate
@@ -8,8 +10,6 @@ import org.threeten.bp.LocalDateTime
 import org.threeten.bp.Month
 import org.threeten.bp.ZoneOffset
 import java.util.Date
-import com.google.gson.Gson
-import com.google.gson.reflect.TypeToken
 
 class Converters {
 
diff --git a/app/src/main/java/io/github/wulkanowy/data/repositories/preferences/PreferencesRepository.kt b/app/src/main/java/io/github/wulkanowy/data/repositories/preferences/PreferencesRepository.kt
index 571059bf..5996d949 100644
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/preferences/PreferencesRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/preferences/PreferencesRepository.kt
@@ -30,6 +30,10 @@ class PreferencesRepository @Inject constructor(
     val gradeMinusModifier: Double
         get() = sharedPref.getString(context.getString(R.string.pref_key_grade_modifier_minus), "0.0")?.toDouble() ?: 0.0
 
+    val gradeColorTheme: String
+        get() = sharedPref.getString(context.getString(R.string.pref_key_grade_color_scheme), "vulcan") ?: "vulcan"
+
+
     val serviceEnablesKey: String = context.getString(R.string.pref_key_services_enable)
     val isServiceEnabled: Boolean
         get() = sharedPref.getBoolean(serviceEnablesKey, true)
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsDialog.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsDialog.kt
index 491caa06..0abeaeea 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsDialog.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsDialog.kt
@@ -5,26 +5,30 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.View.GONE
 import android.view.ViewGroup
-import androidx.core.content.ContextCompat
 import androidx.fragment.app.DialogFragment
 import io.github.wulkanowy.R
 import io.github.wulkanowy.data.db.entities.Grade
 import io.github.wulkanowy.utils.colorStringId
+import io.github.wulkanowy.utils.getBackgroundColor
 import io.github.wulkanowy.utils.toFormattedString
-import io.github.wulkanowy.utils.valueBgColor
 import kotlinx.android.synthetic.main.dialog_grade.*
 
-
 class GradeDetailsDialog : DialogFragment() {
 
     private lateinit var grade: Grade
 
+    private lateinit var colorScheme: String
+
     companion object {
         private const val ARGUMENT_KEY = "Item"
+        private const val COLOR_SCHEME_KEY = "Scheme"
 
-        fun newInstance(grade: Grade): GradeDetailsDialog {
+        fun newInstance(grade: Grade, colorScheme: String): GradeDetailsDialog {
             return GradeDetailsDialog().apply {
-                arguments = Bundle().apply { putSerializable(ARGUMENT_KEY, grade) }
+                arguments = Bundle().apply {
+                    putSerializable(ARGUMENT_KEY, grade)
+                    putString(COLOR_SCHEME_KEY, colorScheme)
+                }
             }
         }
     }
@@ -34,6 +38,7 @@ class GradeDetailsDialog : DialogFragment() {
         setStyle(STYLE_NO_TITLE, 0)
         arguments?.run {
             grade = getSerializable(ARGUMENT_KEY) as Grade
+            colorScheme = getString(COLOR_SCHEME_KEY) ?: "default"
         }
     }
 
@@ -58,7 +63,7 @@ class GradeDetailsDialog : DialogFragment() {
 
         gradeDialogValue.run {
             text = grade.entry
-            setBackgroundResource(grade.valueBgColor)
+            setBackgroundResource(grade.getBackgroundColor(colorScheme))
         }
 
         gradeDialogTeacherValue.text = if (grade.teacher.isBlank()) {
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsFragment.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsFragment.kt
index 7a7ac0b5..048d8589 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsFragment.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsFragment.kt
@@ -134,8 +134,8 @@ class GradeDetailsFragment : BaseSessionFragment(), GradeDetailsView, GradeView.
         gradeDetailsSwipe.isRefreshing = show
     }
 
-    override fun showGradeDialog(grade: Grade) {
-        (activity as? MainActivity)?.showDialogFragment(GradeDetailsDialog.newInstance(grade))
+    override fun showGradeDialog(grade: Grade, colorScheme: String) {
+        (activity as? MainActivity)?.showDialogFragment(GradeDetailsDialog.newInstance(grade, colorScheme))
     }
 
     override fun onParentLoadData(semesterId: Int, forceRefresh: Boolean) {
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsItem.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsItem.kt
index ab958bc2..327eed27 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsItem.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsItem.kt
@@ -4,7 +4,6 @@ import android.annotation.SuppressLint
 import android.view.View
 import android.view.View.GONE
 import android.view.View.VISIBLE
-import androidx.core.content.ContextCompat
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import eu.davidea.flexibleadapter.items.IFlexible
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsPresenter.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsPresenter.kt
index a0d9d208..765af079 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsPresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsPresenter.kt
@@ -12,7 +12,7 @@ import io.github.wulkanowy.utils.FirebaseAnalyticsHelper
 import io.github.wulkanowy.utils.SchedulersProvider
 import io.github.wulkanowy.utils.calcAverage
 import io.github.wulkanowy.utils.changeModifier
-import io.github.wulkanowy.utils.valueBgColor
+import io.github.wulkanowy.utils.getBackgroundColor
 import timber.log.Timber
 import javax.inject.Inject
 
@@ -42,7 +42,7 @@ class GradeDetailsPresenter @Inject constructor(
         if (item is GradeDetailsItem) {
             Timber.i("Select grade item ${item.grade.id}")
             view?.apply {
-                showGradeDialog(item.grade)
+                showGradeDialog(item.grade, preferencesRepository.gradeColorTheme)
                 if (!item.grade.isRead) {
                     item.grade.isRead = true
                     updateItem(item)
@@ -151,7 +151,7 @@ class GradeDetailsPresenter @Inject constructor(
                         GradeDetailsItem(
                             grade = item,
                             weightString = view?.weightString.orEmpty(),
-                            valueBgColor = item.valueBgColor
+                            valueBgColor = item.getBackgroundColor(preferencesRepository.gradeColorTheme)
                         )
                     }
                 }
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsView.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsView.kt
index 24254260..9c9349da 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsView.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsView.kt
@@ -28,7 +28,7 @@ interface GradeDetailsView : BaseSessionView {
 
     fun collapseAllItems()
 
-    fun showGradeDialog(grade: Grade)
+    fun showGradeDialog(grade: Grade, colorScheme: String)
 
     fun showContent(show: Boolean)
 
diff --git a/app/src/main/java/io/github/wulkanowy/utils/GradeExtension.kt b/app/src/main/java/io/github/wulkanowy/utils/GradeExtension.kt
index cb1967ad..092e9520 100644
--- a/app/src/main/java/io/github/wulkanowy/utils/GradeExtension.kt
+++ b/app/src/main/java/io/github/wulkanowy/utils/GradeExtension.kt
@@ -22,18 +22,36 @@ fun List<GradeSummary>.calcAverage(): Double {
     }.average().let { if (it.isNaN()) 0.0 else it }
 }
 
-inline val Grade.valueBgColor: Int
-    get() {
-        return when (value) {
-            6 -> R.color.grade_six
-            5 -> R.color.grade_five
-            4 -> R.color.grade_four
-            3 -> R.color.grade_three
-            2 -> R.color.grade_two
-            1 -> R.color.grade_one
+fun Grade.getBackgroundColor(theme: String): Int {
+    return when (theme) {
+        "grade_color" -> when (color) {
+            "000000" -> R.color.grade_black
+            "F04C4C" -> R.color.grade_red
+            "20A4F7" -> R.color.grade_blue
+            "6ECD07" -> R.color.grade_green
+            "B16CF1" -> R.color.grade_purple
+            else -> R.color.grade_default
+        }
+        "material" -> when (value) {
+            6 -> R.color.grade_material_six
+            5 -> R.color.grade_material_five
+            4 -> R.color.grade_material_four
+            3 -> R.color.grade_material_three
+            2 -> R.color.grade_material_two
+            1 -> R.color.grade_material_one
+            else -> R.color.grade_default
+        }
+        else -> when (value) {
+            6 -> R.color.grade_vulcan_six
+            5 -> R.color.grade_vulcan_five
+            4 -> R.color.grade_vulcan_four
+            3 -> R.color.grade_vulcan_three
+            2 -> R.color.grade_vulcan_two
+            1 -> R.color.grade_vulcan_one
             else -> R.color.grade_default
         }
     }
+}
 
 inline val Grade.colorStringId: Int
     get() {
diff --git a/app/src/main/res/layout/dialog_grade.xml b/app/src/main/res/layout/dialog_grade.xml
index 13224afb..9c2f1006 100644
--- a/app/src/main/res/layout/dialog_grade.xml
+++ b/app/src/main/res/layout/dialog_grade.xml
@@ -26,9 +26,9 @@
                 android:layout_gravity="end"
                 android:background="@color/grade_default"
                 android:gravity="center"
-                android:text="@string/app_name"
                 android:textColor="@color/grade_text"
-                android:textSize="30sp" />
+                android:textSize="30sp"
+                tools:text="6" />
 
             <TextView
                 android:id="@+id/gradeDialogSubject"
diff --git a/app/src/main/res/layout/item_grade_details.xml b/app/src/main/res/layout/item_grade_details.xml
index f3c6204c..3230a68c 100644
--- a/app/src/main/res/layout/item_grade_details.xml
+++ b/app/src/main/res/layout/item_grade_details.xml
@@ -21,9 +21,9 @@
         android:background="@color/grade_default"
         android:gravity="center"
         android:maxLength="5"
-        android:text="@string/app_name"
         android:textColor="@color/grade_text"
-        android:textSize="16sp" />
+        android:textSize="16sp"
+        tools:text="6" />
 
     <TextView
         android:id="@+id/gradeItemDescription"
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index cf4729b6..0e6fc386 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -251,6 +251,7 @@
     <string name="pref_view_grade_modifier_plus">Wartość plusa</string>
     <string name="pref_view_grade_modifier_minus">Wartość minusa</string>
     <string name="pref_view_expand_grade">Rozwiń oceny</string>
+    <string name="pref_grade_color_scheme">Schemat kolorów ocen</string>
 
     <string name="pref_notify_header">Powiadomienia</string>
     <string name="pref_notify_switch">Pokazuj powiadomienia</string>
diff --git a/app/src/main/res/values-pl/value_prefernces.xml b/app/src/main/res/values-pl/value_prefernces.xml
index c15fa89e..05f2ed50 100644
--- a/app/src/main/res/values-pl/value_prefernces.xml
+++ b/app/src/main/res/values-pl/value_prefernces.xml
@@ -9,16 +9,24 @@
         <item>12 godzin</item>
         <item>24 godzin</item>
     </string-array>
+
     <string-array name="theme_entries">
         <item>Wyłączony</item>
         <item>Włączony</item>
         <item>Automatyczny</item>
         <item>Używaj ustawień systemowych</item>
     </string-array>
+
     <string-array name="grade_modifier_entries">
         <item>Domyślna</item>
         <item>0,25</item>
         <item>0,33</item>
         <item>0,5</item>
     </string-array>
+
+    <string-array name="grade_color_scheme_entries">
+        <item>Dzienniczek+</item>
+        <item>Wulkanowy</item>
+        <item>Kolory ocen w dzienniku</item>
+    </string-array>
 </resources>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index deff45fb..6de571d9 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -5,16 +5,29 @@
     <color name="colorPrimaryLight">#ff6659</color>
     <color name="colorBackgroundBottomNav">#f0f0f0</color>
 
-    <color name="grade_six">#03a9f4</color>
-    <color name="grade_five">#4caf50</color>
-    <color name="grade_four">#92c400</color>
-    <color name="grade_three">#ffa000</color>
-    <color name="grade_two">#ff5722</color>
-    <color name="grade_one">#d32f2f</color>
     <color name="grade_default">#607d8b</color>
-
     <color name="grade_text">#ffffff</color>
 
+    <color name="grade_black">#424242</color>
+    <color name="grade_red">#F44336</color>
+    <color name="grade_blue">#2196F3</color>
+    <color name="grade_green">#8BC34A</color>
+    <color name="grade_purple">#7E57C2</color>
+
+    <color name="grade_material_six">#03a9f4</color>
+    <color name="grade_material_five">#4caf50</color>
+    <color name="grade_material_four">#92c400</color>
+    <color name="grade_material_three">#ffa000</color>
+    <color name="grade_material_two">#ff5722</color>
+    <color name="grade_material_one">#d32f2f</color>
+
+    <color name="grade_vulcan_six">#91b43c</color>
+    <color name="grade_vulcan_five">#2cbd92</color>
+    <color name="grade_vulcan_four">#50b6d6</color>
+    <color name="grade_vulcan_three">#d2ab24</color>
+    <color name="grade_vulcan_two">#9071b3</color>
+    <color name="grade_vulcan_one">#d65757</color>
+
     <color name="bottom_nav_background">#303030</color>
     <color name="bottom_nav_background_inverse">#ffffff</color>
 
diff --git a/app/src/main/res/values/preferences_keys.xml b/app/src/main/res/values/preferences_keys.xml
index 54cc2bbd..9007b5df 100644
--- a/app/src/main/res/values/preferences_keys.xml
+++ b/app/src/main/res/values/preferences_keys.xml
@@ -5,6 +5,7 @@
     <string name="pref_key_theme">theme</string>
     <string name="pref_key_grade_modifier_plus">grade_modifier_plus</string>
     <string name="pref_key_grade_modifier_minus">grade_modifier_minus</string>
+    <string name="pref_key_grade_color_scheme">grade_color_scheme</string>
     <string name="pref_key_expand_grade">expand_grade</string>
     <string name="pref_key_services_enable">services_enable</string>
     <string name="pref_key_services_interval">services_interval</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 6d444a34..d6c3612e 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -234,6 +234,7 @@
     <string name="pref_view_grade_modifier_plus">Value of the plus</string>
     <string name="pref_view_grade_modifier_minus">Value of the minus</string>
     <string name="pref_view_expand_grade">Expand grades</string>
+    <string name="pref_grade_color_scheme">Grades color scheme</string>
 
     <string name="pref_notify_header">Notifications</string>
     <string name="pref_notify_switch">Show notifications</string>
diff --git a/app/src/main/res/values/value_prefernces.xml b/app/src/main/res/values/value_prefernces.xml
index 56c5de0e..1a1dceca 100644
--- a/app/src/main/res/values/value_prefernces.xml
+++ b/app/src/main/res/values/value_prefernces.xml
@@ -57,4 +57,15 @@
         <item>0.33</item>
         <item>0.5</item>
     </string-array>
+
+    <string-array name="grade_color_scheme_entries">
+        <item>Dzienniczek+</item>
+        <item>Wulkanowy</item>
+        <item>Grade colors in register</item>
+    </string-array>
+    <string-array name="grade_color_scheme_values" translatable="false">
+        <item>vulcan</item>
+        <item>material</item>
+        <item>grade_color</item>
+    </string-array>
 </resources>
diff --git a/app/src/main/res/xml/scheme_preferences.xml b/app/src/main/res/xml/scheme_preferences.xml
index 575fea63..a6e6da58 100644
--- a/app/src/main/res/xml/scheme_preferences.xml
+++ b/app/src/main/res/xml/scheme_preferences.xml
@@ -30,6 +30,14 @@
             android:key="@string/pref_key_expand_grade"
             android:title="@string/pref_view_expand_grade"
             app:iconSpaceReserved="false" />
+        <ListPreference
+            android:defaultValue="vulcan"
+            android:entries="@array/grade_color_scheme_entries"
+            android:entryValues="@array/grade_color_scheme_values"
+            android:key="@string/pref_key_grade_color_scheme"
+            android:summary="%s"
+            android:title="@string/pref_grade_color_scheme"
+            app:iconSpaceReserved="false" />
         <ListPreference
             android:defaultValue="0.0"
             android:entries="@array/grade_modifier_entries"