Hi Douglas
You need to go to Administration > Studio > UI Themes
Find the UI Theme you want to change and open it.
In the CSS panel, scroll down to about row 3564 and you will see "CA PPM" in the text.
Change this to the text that you want to see and save it.
Note you might have to create a new theme and copy the stock UI CSS text.
Hope this helps.
Regards,
Steve