Add the Black theme

Friendly to Amoled screens.
The background of keys is the same as the background of the whole
keyboard: pure black.
Colors are also slightly stronger.

res/values/arrays.xml

@@ -21,10 +21,12 @@
   <string-array name="pref_theme_entries">
     <item>@string/pref_theme_e_dark</item>
     <item>@string/pref_theme_e_light</item>
+    <item>@string/pref_theme_e_black</item>
   </string-array>
   <string name="pref_theme_default">dark</string>
   <string-array name="pref_theme_values">
     <item>dark</item>
     <item>light</item>
+    <item>black</item>
   </string-array>
 </resources>

res/values/strings.xml

@@ -44,4 +44,5 @@
   <string name="pref_theme_summary">%s</string>
   <string name="pref_theme_e_dark">Dark</string>
   <string name="pref_theme_e_light">Light</string>
+  <string name="pref_theme_e_black">Black</string>
 </resources>

res/values/themes.xml

@@ -49,4 +49,18 @@
     <item name="emoji_key_bg" type="color">?attr/emoji_button_bg</item>
     <item name="emoji_key_text" type="color">?attr/colorLabel</item>
   </style>
+  <style name="Black">
+    <item name="colorKeyboard">#000000</item>
+    <item name="colorKey">#000000</item>
+    <item name="colorKeyActivated">#333333</item>
+    <item name="colorLabel">#eeeeee</item>
+    <item name="colorLabelActivated">#009dff</item>
+    <item name="colorLabelLocked">#00ff26</item>
+    <item name="colorSubLabel">#bbbbbb</item>
+    <item name="keyBorderRadius">1dp</item>
+    <item name="emoji_button_bg" type="color">#000000</item>
+    <item name="emoji_color" type="color">#ffffff</item>
+    <item name="emoji_key_bg" type="color">?attr/emoji_button_bg</item>
+    <item name="emoji_key_text" type="color">?attr/colorLabel</item>
+  </style>
 </resources>

srcs/juloo.keyboard2/Config.java

@@ -126,6 +126,7 @@ final class Config
     switch (name)
     {
       case "light": return R.style.Light;
+      case "black": return R.style.Black;
       default: case "dark": return R.style.Dark;
     }
   }