Scribus looks pixelated as if zoomed in

[sirgazil]

I installed Scribus from Guix in a foreign distro and it looks weird 
when I launch it. See these screenshots for example:

https://multimedialib.files.wordpress.com/2019/04/scribus-154-splash-2019-04-22.png

https://multimedialib.files.wordpress.com/2019/04/scribus-154-dialog-2019-04-22.png

https://multimedialib.files.wordpress.com/2019/04/scribus-154-main-2019-04-22.png

It looks pixelated, as if zoomed in, and some parts of the interface 
appear clipped. Anyone gets this same behavior?

I'm using the following Guix and Scribus:

$ guix --version
guix (GNU Guix) ffc8ab75f10ecaaf52cdc38f5846e9af8e2dadd5

$ which scribus
/var/guix/profiles/per-user/sirgazil/guix-profile/bin/scribus

$ scribus --version

Scribus, Open Source Desktop Publishing
---------------------------------------
Homepage:       http://www.scribus.net
Documentation:  http://docs.scribus.net
Wiki:           http://wiki.scribus.net
Issues:         http://bugs.scribus.net

Scribus Version 1.5.4



--
Luis Felipe López Acevedo
http://sirgazil.bitbucket.io/