Rewrite font sizes in pixels
Rewrite font sizes in pixels

Instead of using em for font sizes, we re-compute them and apply our DPI
correction factor (75%) to use pixels.

https://phabricator.endlessm.com/T10794

endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib