+ """
+ Sets given *OCIO* configuration default roles.
+
+ Parameters
+ ----------
+ config : config
+ *OCIO* configuration.
+ color_picking : str or unicode
+ Color picking role title.
+ color_timing : str or unicode
+ Color timing role title.
+ compositing_log : str or unicode
+ Compositing log role title.
+ data : str or unicode
+ Data role title.
+ default : str or unicode
+ Default role title.
+ matte_paint : str or unicode
+ Matte painting role title.
+ reference : str or unicode
+ Reference role title.
+ scene_linear : str or unicode
+ Scene linear role title.
+ texture_paint : str or unicode
+ Texture painting role title.
+
+ Returns
+ -------
+ bool
+ Definition success.
+ """
+