diff --git a/dev/res/resources.qrc b/dev/res/resources.qrc
deleted file mode 100644
index 98c464d..0000000
--- a/dev/res/resources.qrc
+++ /dev/null
@@ -1,14 +0,0 @@
-<RCC>
-  <qresource prefix="img">
-    <file>img/add_directory.png</file>
-    <file>img/add_file.png</file>
-    <file>img/banner_about.png</file>
-    <file>img/export_book.png</file>
-    <file>img/file_new.png</file>
-    <file>img/file_open.png</file>
-    <file>img/remove_files.png</file>
-    <file>img/save_file.png</file>
-    <file>img/shift_down.png</file>
-    <file>img/shift_up.png</file>
-  </qresource>
-</RCC>
diff --git a/mangle/resources/__init__.py b/mangle/resources/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/mangle/resources/images/__init__.py b/mangle/resources/images/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/dev/res/img/add_directory.png b/mangle/resources/images/add_directory.png
similarity index 100%
rename from dev/res/img/add_directory.png
rename to mangle/resources/images/add_directory.png
diff --git a/dev/res/img/add_file.png b/mangle/resources/images/add_file.png
similarity index 100%
rename from dev/res/img/add_file.png
rename to mangle/resources/images/add_file.png
diff --git a/dev/res/img/banner_about.png b/mangle/resources/images/banner_about.png
similarity index 100%
rename from dev/res/img/banner_about.png
rename to mangle/resources/images/banner_about.png
diff --git a/dev/res/img/export_book.png b/mangle/resources/images/export_book.png
similarity index 100%
rename from dev/res/img/export_book.png
rename to mangle/resources/images/export_book.png
diff --git a/dev/res/img/file_new.png b/mangle/resources/images/file_new.png
similarity index 100%
rename from dev/res/img/file_new.png
rename to mangle/resources/images/file_new.png
diff --git a/dev/res/img/file_open.png b/mangle/resources/images/file_open.png
similarity index 100%
rename from dev/res/img/file_open.png
rename to mangle/resources/images/file_open.png
diff --git a/dev/res/img/remove_files.png b/mangle/resources/images/remove_files.png
similarity index 100%
rename from dev/res/img/remove_files.png
rename to mangle/resources/images/remove_files.png
diff --git a/dev/res/img/save_file.png b/mangle/resources/images/save_file.png
similarity index 100%
rename from dev/res/img/save_file.png
rename to mangle/resources/images/save_file.png
diff --git a/dev/res/img/shift_down.png b/mangle/resources/images/shift_down.png
similarity index 100%
rename from dev/res/img/shift_down.png
rename to mangle/resources/images/shift_down.png
diff --git a/dev/res/img/shift_up.png b/mangle/resources/images/shift_up.png
similarity index 100%
rename from dev/res/img/shift_up.png
rename to mangle/resources/images/shift_up.png
diff --git a/mangle/resources/ui/__init__.py b/mangle/resources/ui/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/dev/ui/about.ui b/mangle/resources/ui/about.ui
similarity index 100%
rename from dev/ui/about.ui
rename to mangle/resources/ui/about.ui
diff --git a/dev/ui/book.ui b/mangle/resources/ui/book.ui
similarity index 100%
rename from dev/ui/book.ui
rename to mangle/resources/ui/book.ui
diff --git a/dev/ui/options.ui b/mangle/resources/ui/options.ui
similarity index 100%
rename from dev/ui/options.ui
rename to mangle/resources/ui/options.ui