Fix colors in About screen

app/src/main/res/layout/about.xml

@@ -44,7 +44,7 @@
                 android:textStyle="bold"
                 android:textSize="16sp"
                 android:layout_margin="6dp"
-                android:textColor="@color/blue_700"
+                android:textColor="?aboutScreenColor"
                 android:text="@string/app_name"/>
 
             <TextView
@@ -63,7 +63,7 @@
             <TextView
                 style="@style/CardHeader"
                 android:text="@string/links"
-                android:textColor="@color/blue_700"/>
+                android:textColor="?aboutScreenColor"/>
 
             <TextView
                 android:id="@+id/tvRate"
@@ -89,7 +89,7 @@
             <TextView
                 style="@style/CardHeader"
                 android:text="@string/developers"
-                android:textColor="@color/blue_700"/>
+                android:textColor="?aboutScreenColor"/>
 
             <TextView
                 style="@style/About.Item"
@@ -103,7 +103,7 @@
             <TextView
                 style="@style/CardHeader"
                 android:text="@string/translators"
-                android:textColor="@color/blue_700"/>
+                android:textColor="?aboutScreenColor"/>
 
             <TextView
                 style="@style/About.Item"

app/src/main/res/values-v21/styles.xml

@@ -45,6 +45,8 @@
         <item name="highContrastTextColor">@color/grey_800</item>
         <item name="mediumContrastTextColor">@color/grey_500</item>
         <item name="lowContrastTextColor">@color/grey_300</item>
+
+        <item name="aboutScreenColor">@color/blue_700</item>
     </style>
 
     <style name="AppBaseThemeDark" parent="android:Theme.Material">
@@ -73,6 +75,8 @@
         <item name="lowContrastReverseTextColor">@color/grey_300</item>
 
         <item name="palette">@array/darkPalette</item>
+
+        <item name="aboutScreenColor">@color/blue_300</item>
     </style>
 
     <style name="AppBaseThemeDark.PureBlack">

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

@@ -25,6 +25,7 @@
     <attr name="highlightedBackgroundColor" format="reference"/>
     <attr name="useHabitColorAsPrimary" format="boolean"/>
     <attr name="palette" format="reference"/>
+    <attr name="aboutScreenColor" format="reference"/>
 
     <attr name="highContrastTextColor" format="reference"/>
     <attr name="mediumContrastTextColor" format="reference"/>