Caw logos

[Pete C]

Hi all, I'm very new modding so alologies if this is a daft question. I've tried searching and can't seem to find an answer so came here. All I want to do is use a mod tool (I've chosen pac tool so far) to have more freedom to be able to add tattoos to my caws without worrying about limits etc. Is there a way of getting into their texture files or is there a way to replace the caw logo files? Thanks in advance for any help