Dialer Button Redesign (How?)

[zoman]

Hi all.
On the picture you can see my work for dialer skin inside red lines.

http://m.foto.radikal.ru/0706/a9/0382c12c7540.png

I have a question about text on button inside yellow lines.
Where in system it is? I want replace on my symbol. Is it real to do and how?

[cesardeluxe]

Hi all.
On the picture you can see my work for dialer skin inside red lines.

http://m.foto.radikal.ru/0706/a9/0382c12c7540.png

I have a question about text on button inside yellow lines.
Where in system it is? I want replace on my symbol. Is it real to do and how?

I put it up so we all can learn!! yeah how!?