[Bug 856239] fuzzy font rendering (Liberation 2 regression)

[bugzilla at redhat.com]

Product: Fedora
https://bugzilla.redhat.com/show_bug.cgi?id=856239

--- Comment #107 from Mike FABIAN <mfabian at redhat.com> ---
Created attachment 654949
  --> https://bugzilla.redhat.com/attachment.cgi?id=654949&action=edit
liberation-sans-1-2-fontforge-grid-fit-view.png

Using "Grid Fit View" as explained here http://fontforge.org/charview.html
shows that the byte code hinting in Liberation Sans 1 and 2 is very
different. 

Left: Liberation Sans 1
Right: Liberation Sans 2

This screenshot shows the effect of the byte code "bending" outlines
to make it fit to the grid.

For Liberation Sans 1, this is done much more precisely and extrem
as for Liberation Sans 2. 

For Liberation Sans 1, after the grid fitting, the "hole" in the 'g' has
become narrower but both the left and the right vertical part of the "circle"
align very exactly with vertical columns of pixels. therefore one  has 
thin vertical lines  which are very black.

For Liberation Sans 2, the alignment to the grid is less precise, for example
the vertical part of the "circle" on the left still ends up on the border
of two vertical columns, so both columns get some grey ink, making this
vertical line appear wider.

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