Durable customized strings

I would like to override certain wordings in Piwik’s UI. Of course, I could adjust the strings in question in the respective xx.json file but after every update everything is lost.

Joomla’s solution for this problem is: One has to create


where xx-XX stands for e.g. en-US

Strings defined therein are overriding the string variables in the respective xx-XX.ini files of any Joomla component. And of course override files are not touched during updates.

I would love to have a similar feature in Piwik.