Help! custom keyboard

stackpoole

hey guys,
I recently watched this vid


Can anyone help me in changing the images of the font?

I have a font of the keyboard but want to change the other font that comes up once you touch the keyboard ( i hope you know what I mean)

the keyboard letters name's are a.png, b.png, c.png etc

the other font I have and want to use is aa.png, bb.png, cc.png etc

can someone tell me how to incorporate this into my project?

Thanks!!!