rxvt-unicode + tmux do italic instead of reverse

When using rxvt-unicode and tmux, I found that rxvt-unicode shows italic instead of reverse color when I search.

Italic

Reverse

I followed the setting in the article below:

http://sourceforge.net/mailarchive/forum.php?thread_name=20110812111030.GH13508%40plenz.com&forum_name=tmux-users

Modify ~/.tmux.conf and add the line to solve my problem.

set -g terminal-overrides 'rxvt-unicode*:sitm@'

dump a binary into a single line of hex

xxd -p [binary] |tr -d '\n

tmux

1) switch panes

ctrl-b + o

2) scroll back

crtl-b + [

to quit scroll mode, press 'q'

tmux.conf

set-option -g prefix C-a

remap control prefix to ctrl+a