Merge branch 'darker-dark-theme' into 'master'

Use darker primary colors for the Dark theme

Primary colors of the Light theme are too bright for the Dark theme. The difference should be especially noticeable on OLED screens.

Before and after:

![before](/uploads/437920c0b1173522b3d8312740532d12/before.png)
![after](/uploads/e1fa004e35021152688ba5b0da4d7086/after.png)

See merge request !160

F-Droid/res/values/colors.xml

@@ -7,6 +7,7 @@
 
     <color name="fdroid_blue">#ff1976d2</color>
     <color name="fdroid_blue_dark">#ff0d47a1</color>
+    <color name="fdroid_blue_darkest">#ff042570</color>
     <color name="fdroid_green">#ff8ab000</color>
     <color name="fdroid_night">#ff222222</color>
     <color name="fdroid_night_dark">#ff111111</color>

F-Droid/res/values/styles.xml

@@ -4,8 +4,8 @@
     <style name="AppBaseThemeDark" parent="Theme.AppCompat">
         <!-- backward-compatibility theme options go here -->
 
-        <item name="colorPrimary">@color/fdroid_blue</item>
-        <item name="colorPrimaryDark">@color/fdroid_blue_dark</item>
+        <item name="colorPrimary">@color/fdroid_blue_dark</item>
+        <item name="colorPrimaryDark">@color/fdroid_blue_darkest</item>
         <item name="colorAccent">@color/fdroid_green</item>
         <item name="android:textColorLink">@color/fdroid_green</item>
         <item name="alertDialogTheme">@style/AlertDialogThemeDark</item>