commit 1d350d993d2b51df7880e92b48ed103e059ec385
Author: Andrew Savchenko <bircoph@gmail.com>
Date:   Sun Jul 16 17:07:27 2017 +0300

    Fix compatibility problem With ElvenRelations-1.2:
    
    When starting game:
    
    Full traceback:
      File "/home/andrew/src/_compat/styles.rpymc", line 22, in script
      File "/usr/lib64/python2.7/site-packages/renpy699/renpy/ast.py", line 814, in execute
        renpy.python.py_exec_bytecode(self.code.bytecode, self.hide, store=self.store)
      File "/usr/lib64/python2.7/site-packages/renpy699/renpy/python.py", line 1719, in py_exec_bytecode
        exec bytecode in globals, locals
      File "renpy/common/_compat/styles.rpym", line 374, in <module>
        style.selected_button = _SelectedCompat('button')
      File "renpy/common/_compat/styles.rpym", line 347, in __init__
        self.target = target
      File "renpy/style.pyx", line 378, in renpy.style.StyleCore.__setattr__ (gen/renpy.style.c:6236)
        raise Exception("Style property {} is not known.".format(name))
    Exception: Style property target is not known.
    
    "button*" properties are no longer present in RenPy, so relevant
    code is removed.

diff --git a/renpy/common/_compat/styles.rpym b/renpy/common/_compat/styles.rpym
index d83eeb0..174f0b6 100644
--- a/renpy/common/_compat/styles.rpym
+++ b/renpy/common/_compat/styles.rpym
@@ -371,13 +371,6 @@ init python:
             self.property_updates = [ ]
 
 
-    style.selected_button = _SelectedCompat('button')
-    style.selected_button_text = _SelectedCompat('button_text')
-    style.gm_nav_selected_button = _SelectedCompat('gm_nav_button')
-    style.gm_nav_selected_button_text = _SelectedCompat('gm_nav_button_text')
-    style.prefs_selected_button = _SelectedCompat('prefs_button')
-    style.prefs_selected_button_text = _SelectedCompat('prefs_button_text')
-
     def _apply_selected_compat():
         for scs in _selected_compat:
             scs.apply()