Overview of Changes in GTK+ 3.15.0
==================================

* GDK supports rendering windows using OpenGL; currently
  this is implemented for X11 and Wayland using libepoxy

* GtkGLArea: A new widget for rendering with OpenGL

* GtkSidebar: A new switcher for GtkStack that looks like
  a sidebar

* Better typography: In many places, we now use proper Unicode
  characters for dashes, quotes, multiplication signs and the
  like, instead of ASCII approximations

* Theming:
 - Context menus use the default font instead of inheriting from
   the widget they are attached to
 - Theming engines are no longer used
 - Backdrop style has been fine-tuned to make the difference to
   the active window more evident without affecting readability

* Inspector:
 - Show nested tree models
 - Add a checkbox to disable the warning dialog
 - Rearrange the UI to gain space
 - Show object counts

* GtkTextView has a monospace property

* GtkPaned has a wide-handle property

* GtkPrintUnixDialog
 - Has improved appearance without headerbars
 - Better rendering of sheet icons
 - No more missing icons

* GtkScrolledWindow
 - A new policy, GTK_POLICY_EXTERNAL, which allows scrolling
   without showing a scrollbar
 - Scroll events can now overshoot as well
 - The new signal ::edge-overshot is emitted when the scrolled
   window is fully overshot
 - Scrollbars will be overlayed as narrow indicators when
   there is no mouse

* Deprecations:
 - gdk_window_set_static_gravities
 - gdk_window_set_composited
 - gtk_style_context_get_background_color
 - gtk_style_context_get_border_color
 - gtk_settings_set_string/long/double_property
 - gtk_settings_install_property