diff --git a/lib/res/drawable-hdpi/numberpicker_down_pressed_holo_dark.png b/lib/res/drawable-hdpi/numberpicker_down_pressed_holo.png
similarity index 100%
rename from lib/res/drawable-hdpi/numberpicker_down_pressed_holo_dark.png
rename to lib/res/drawable-hdpi/numberpicker_down_pressed_holo.png
diff --git a/lib/res/drawable-hdpi/numberpicker_down_pressed_holo_light.png b/lib/res/drawable-hdpi/numberpicker_down_pressed_holo_light.png
deleted file mode 100644
index 9c23a18..0000000
Binary files a/lib/res/drawable-hdpi/numberpicker_down_pressed_holo_light.png and /dev/null differ
diff --git a/lib/res/drawable-hdpi/numberpicker_up_pressed_holo_dark.png b/lib/res/drawable-hdpi/numberpicker_up_pressed_holo.png
similarity index 100%
rename from lib/res/drawable-hdpi/numberpicker_up_pressed_holo_dark.png
rename to lib/res/drawable-hdpi/numberpicker_up_pressed_holo.png
diff --git a/lib/res/drawable-hdpi/numberpicker_up_pressed_holo_light.png b/lib/res/drawable-hdpi/numberpicker_up_pressed_holo_light.png
deleted file mode 100644
index 358a13f..0000000
Binary files a/lib/res/drawable-hdpi/numberpicker_up_pressed_holo_light.png and /dev/null differ
diff --git a/lib/res/drawable-mdpi/numberpicker_down_pressed_holo_dark.png b/lib/res/drawable-mdpi/numberpicker_down_pressed_holo.png
similarity index 100%
rename from lib/res/drawable-mdpi/numberpicker_down_pressed_holo_dark.png
rename to lib/res/drawable-mdpi/numberpicker_down_pressed_holo.png
diff --git a/lib/res/drawable-mdpi/numberpicker_down_pressed_holo_light.png b/lib/res/drawable-mdpi/numberpicker_down_pressed_holo_light.png
deleted file mode 100644
index 081ea4e..0000000
Binary files a/lib/res/drawable-mdpi/numberpicker_down_pressed_holo_light.png and /dev/null differ
diff --git a/lib/res/drawable-mdpi/numberpicker_up_pressed_holo_dark.png b/lib/res/drawable-mdpi/numberpicker_up_pressed_holo.png
similarity index 100%
rename from lib/res/drawable-mdpi/numberpicker_up_pressed_holo_dark.png
rename to lib/res/drawable-mdpi/numberpicker_up_pressed_holo.png
diff --git a/lib/res/drawable-mdpi/numberpicker_up_pressed_holo_light.png b/lib/res/drawable-mdpi/numberpicker_up_pressed_holo_light.png
deleted file mode 100644
index 0318c5f..0000000
Binary files a/lib/res/drawable-mdpi/numberpicker_up_pressed_holo_light.png and /dev/null differ
diff --git a/lib/res/drawable-xhdpi/numberpicker_down_pressed_holo_dark.png b/lib/res/drawable-xhdpi/numberpicker_down_pressed_holo.png
similarity index 100%
rename from lib/res/drawable-xhdpi/numberpicker_down_pressed_holo_dark.png
rename to lib/res/drawable-xhdpi/numberpicker_down_pressed_holo.png
diff --git a/lib/res/drawable-xhdpi/numberpicker_down_pressed_holo_light.png b/lib/res/drawable-xhdpi/numberpicker_down_pressed_holo_light.png
deleted file mode 100644
index 635184c..0000000
Binary files a/lib/res/drawable-xhdpi/numberpicker_down_pressed_holo_light.png and /dev/null differ
diff --git a/lib/res/drawable-xhdpi/numberpicker_up_pressed_holo_dark.png b/lib/res/drawable-xhdpi/numberpicker_up_pressed_holo.png
similarity index 100%
rename from lib/res/drawable-xhdpi/numberpicker_up_pressed_holo_dark.png
rename to lib/res/drawable-xhdpi/numberpicker_up_pressed_holo.png
diff --git a/lib/res/drawable-xhdpi/numberpicker_up_pressed_holo_light.png b/lib/res/drawable-xhdpi/numberpicker_up_pressed_holo_light.png
deleted file mode 100644
index b8f6849..0000000
Binary files a/lib/res/drawable-xhdpi/numberpicker_up_pressed_holo_light.png and /dev/null differ
diff --git a/lib/res/drawable/numberpicker_down_btn_holo_dark.xml b/lib/res/drawable/numberpicker_down_btn_holo_dark.xml
index dd6332d..9b8a022 100644
--- a/lib/res/drawable/numberpicker_down_btn_holo_dark.xml
+++ b/lib/res/drawable/numberpicker_down_btn_holo_dark.xml
@@ -23,7 +23,7 @@
 
     <item android:state_pressed="true"
           android:state_enabled="true"
-          android:drawable="@drawable/numberpicker_down_pressed_holo_dark" />
+          android:drawable="@drawable/numberpicker_down_pressed_holo" />
 
     <item android:state_pressed="false"
           android:state_enabled="true"
diff --git a/lib/res/drawable/numberpicker_down_btn_holo_light.xml b/lib/res/drawable/numberpicker_down_btn_holo_light.xml
index 565fd86..8564fd0 100644
--- a/lib/res/drawable/numberpicker_down_btn_holo_light.xml
+++ b/lib/res/drawable/numberpicker_down_btn_holo_light.xml
@@ -23,7 +23,7 @@
 
     <item android:state_pressed="true"
           android:state_enabled="true"
-          android:drawable="@drawable/numberpicker_down_pressed_holo_light" />
+          android:drawable="@drawable/numberpicker_down_pressed_holo" />
 
     <item android:state_pressed="false"
           android:state_enabled="true"
diff --git a/lib/res/drawable/numberpicker_up_btn_holo_dark.xml b/lib/res/drawable/numberpicker_up_btn_holo_dark.xml
index 7af3ee4..7fcd805 100644
--- a/lib/res/drawable/numberpicker_up_btn_holo_dark.xml
+++ b/lib/res/drawable/numberpicker_up_btn_holo_dark.xml
@@ -23,7 +23,7 @@
 
     <item android:state_pressed="true"
           android:state_enabled="true"
-          android:drawable="@drawable/numberpicker_up_pressed_holo_dark" />
+          android:drawable="@drawable/numberpicker_up_pressed_holo" />
 
     <item android:state_pressed="false"
           android:state_enabled="true"
diff --git a/lib/res/drawable/numberpicker_up_btn_holo_light.xml b/lib/res/drawable/numberpicker_up_btn_holo_light.xml
index cbcbb07..b59735c 100644
--- a/lib/res/drawable/numberpicker_up_btn_holo_light.xml
+++ b/lib/res/drawable/numberpicker_up_btn_holo_light.xml
@@ -23,7 +23,7 @@
 
     <item android:state_pressed="true"
           android:state_enabled="true"
-          android:drawable="@drawable/numberpicker_up_pressed_holo_light" />
+          android:drawable="@drawable/numberpicker_up_pressed_holo" />
 
     <item android:state_pressed="false"
           android:state_enabled="true"