I installed this Simplenews module, and it gives default field to enter your email to subscribe for newsletter and the fields title is just
'Email:' and I need to change it to something else.
It looks like it's hardcoded and I could just dig through modules files and edit, but I know this is not recommended.
I was hoping maybe I could just paste in some preprocess function to theme's template.php file and replace 'Email:' with e.g. 'Join Our Mailing List:'.
Path to label is
form.simplenews-subscribe div div label.