Autocreated ~/.gtkrc-2.0 boolean values causes Gtk-Message errors

[MestreLion]

After installing and using LXAppearance (0.4.1+git20100809-0ubuntu1) in Linux Mint 10 64bits (based on Ubuntu Maverick 10.10), all GTK+ apps started via terminal shows the following errors:

Gtk-Message: /home/rodrigo/.gtkrc-2.0:13: failed to retrieve property `gtk-enable-event-sounds' of type `gboolean' from rc file value "((GString*) 0x1ced080)" of type `gboolean'
Gtk-Message: /home/rodrigo/.gtkrc-2.0:14: failed to retrieve property `gtk-enable-input-feedback-sounds' of type `gboolean' from rc file value "((GString*) 0x1ced440)" of type `gboolean'
Gtk-Message: /home/rodrigo/.gtkrc-2.0:11: failed to retrieve property `gtk-button-images' of type `gboolean' from rc file value "((GString*) 0x1ced200)" of type `gboolean'
Gtk-Message: /home/rodrigo/.gtkrc-2.0:12: failed to retrieve property `gtk-menu-images' of type `gboolean' from rc file value "((GString*) 0x1ced0a0)" of type `gboolean'

The ~/.gtkrc-2.0 file created automatically by lxappearance contains these lines:

gtk-button-images=TRUE
gtk-menu-images=TRUE
gtk-enable-event-sounds=TRUE
gtk-enable-input-feedback-sounds=TRUE

This may be unrelated, but while googling for this errors, I've found this:

http://live.gnome.org/GnomeArt/Tutorials/GtkThemes#The_gtkrc_File

"Note that TRUE and FALSE cannot be used in the theme, you can use 1 and 0 instead. "

And indeed if I change the values from TRUE to 1 (or 0), it solves the problem (until I run LXAppearance again and it overwrites my changes)

I believe LXAppearance should change boolean values in ~/.gtkrc-2.0 from TRUE/FALSE to 1/0