https://bugzilla.redhat.com/show_bug.cgi?id=1084228
--- Comment #10 from Pravin Satpute psatpute@redhat.com --- 1. Hinting in Liberation one looks like Manually done. That is why its tricky to update. I will find some guides and update you.
2. Hinting in Liberation 2.00 is done with some automated tools and does not give as sharp output as Liberation1. We tried this switch in particular Fedora version but lots of people complained so decided to switch back.
Conclusion we came up with Liberation 1 and 2 are not compatible for Hinting rules.