The translations is not complete yet. Currently translated when ever I need something translated in the current installation of Magento 2.
After installing Magento 2, run the following commands from your Magento 2 root directory:
composer require codepeak/magento2-sv_se
php bin/magento cache:flush
Feel free to fork and contribute to this module. Simply create a pull request and we'll review and merge your changes to master branch.
Codepeak is a Magento consultant agency located in Sweden. For more information, please visit codepeak.se.