[gthumb] delete dialog: make the delete button red

[Paolo Bacchilega <paobac src gnome org>]

commit ff766454743214778a0780f56cc1b09c76bd5fc0
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sat May 11 12:55:49 2019 +0200

    delete dialog: make the delete button red

 gthumb/gth-file-source-vfs.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gthumb/gth-file-source-vfs.c b/gthumb/gth-file-source-vfs.c
index 0cbb4bf3..39dfd7db 100644
--- a/gthumb/gth-file-source-vfs.c
+++ b/gthumb/gth-file-source-vfs.c
@@ -785,6 +785,7 @@ trash_task_completed_cb (GthTask  *task,
                                           _("The files cannot be moved to the Trash. Do you want to delete 
them permanently?"),
                                           _GTK_LABEL_CANCEL,
                                           _GTK_LABEL_DELETE);
+               _gtk_dialog_add_class_to_response (GTK_DIALOG (d), GTK_RESPONSE_YES, 
GTK_STYLE_CLASS_DESTRUCTIVE_ACTION);
                g_signal_connect (d,
                                  "response",
                                  G_CALLBACK (trash_failed_delete_permanently_response_cb),
@@ -858,6 +859,7 @@ gth_file_mananger_delete_files (GtkWindow *window,
                                             _GTK_LABEL_CANCEL, GTK_RESPONSE_CANCEL,
                                             _GTK_LABEL_DELETE, GTK_RESPONSE_YES,
                                             NULL);
+               _gtk_dialog_add_class_to_response (GTK_DIALOG (d), GTK_RESPONSE_YES, 
GTK_STYLE_CLASS_DESTRUCTIVE_ACTION);
                g_signal_connect (d, "response", G_CALLBACK (delete_permanently_response_cb), file_list);
                gtk_widget_show (d);