List of customisable strings

I’d like to check what messages the system sends to users, and maybe customise them. Anything I type in as a search term in Customise–Text (eg “flag” or “system_mesages”) shows up “more than 50 results” so I don’t get to see them all. Thanks.

You can look in the source at


That’s great. Are there other similar ones? For example, when I search that for “tl1” or “system_messages” nothing turns up.

Update: there’s also a file server.en.yml. I’ve not looked through it but hope that between these two files I’ll be able to find everything.