[Fedora-i18n-bugs] [Bug 1084228] New: Hinting for Liberation Sans inferior at small font size

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1084228

            Bug ID: 1084228
           Summary: Hinting for Liberation Sans inferior at small font
                    size
           Product: Fedora
           Version: 20
         Component: liberation-fonts
          Assignee: psatpute(a)redhat.com
          Reporter: Eduard.Braun2(a)gmx.de
        QA Contact: extras-qa(a)fedoraproject.org
                CC: fonts-bugs(a)lists.fedoraproject.org,
                    i18n-bugs(a)lists.fedoraproject.org,
                    petersen(a)redhat.com, psatpute(a)redhat.com



Created attachment 882473
  --> https://bugzilla.redhat.com/attachment.cgi?id=882473&action=edit
testcase with the problematic font charakteristics

Wikipedia recently switched to a predefined CSS font stack for body font so
even Windows users will be served with Liberation Sans if installed (e.g.
because it is distributed with Libre Office).

This made apparent inferior hinting of Liberation Sans with bold weight when
rendered at the specific size of 0.875em (the font size used in MediaWiki's
vector skin).

Most notable "e"s have a very thick lower curve while the upper curve is much
too thin. This also applies for variants like "è é ê ë". Funnily not for "œ
æ"
though which is rendered differently.

Also notable is e.g. "s" which has thick upper/lower curves but is thin in the
middle.


A testcase with the described font characteristics set is attached. The
screenshot shows the rendering in Firefox.


The screenshot was created with Firefox 28.0 on Windows 7.
The installed version of the Liberation fonts is 2.00.1

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