[gimp/gtk3-port: 220/229] Unkommented settings for preferring a dark GTK+ theme.

[Michael Natterer <mitch src gnome org>]

commit acabe2ce655cebb7b99987a1b4d21f53d2b2c184
Author: Alexandre Prokoudine <alexandre prokoudine gmail com>
Date:   Sat Jul 21 21:17:13 2012 +0400

    Unkommented settings for preferring a dark GTK+ theme.
    
    All things work with two exceptions (so far): the ruler widget and 2nd level dialogs (e.g. PNG saving 
options) are not affected.

 app/gui/themes.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/app/gui/themes.c b/app/gui/themes.c
index eea51aa..1d2d6e9 100644
--- a/app/gui/themes.c
+++ b/app/gui/themes.c
@@ -127,11 +127,10 @@ themes_init (Gimp *gimp)
       g_list_free_full (path, (GDestroyNotify) g_object_unref);
     }
 
-#if 0
+
   g_object_set (gtk_settings_get_for_screen (gdk_screen_get_default ()),
                 "gtk-application-prefer-dark-theme", TRUE,
                 NULL);
-#endif
 
   themes_style_provider = GTK_STYLE_PROVIDER (gtk_css_provider_new ());