If i merge a language pack like danish into the phpBB folder and visit the installation page the page content is in english but at the top of the page in the dropdown list to choose language "Dansk" is selected because it appears top most in the list.

 I would like British English to be selected by default so it reflects the language used on the page. Also when the user have not switched the language by using the list and Change button.

https://www.phpbb.com/community/viewtopic.php?p=16032040