On Mar 6, 2011, at 1:35 AM, Felix Miata wrote: >> Your test case has bad fall back. I don't have DejaVu (*) installed > > What makes it "bad"? Did note 1 escape your understanding?
Note 1 is buried several screens deep. My bad for not having the time for the need to scroll down that far to find an explanation of a test case… >> Both the lighter faces display perfectly fine on my systems, even at 10 ~ >> 12px. Whether I can read text comfortably at that size is another matter, >> unrelated to the font-weight. > > I remain unable to fathom how weights lighter than 400 @12px size are > possible, since it seems fairly clear the stem weights at that spec are 1px. > I suppose the lightness must be due to expensive crafting to reduce pixel > density of lighter weight fonts, creating the illusion of less weight by > bleeding in background color, but how is the overall narrowing accomplished? > 12px is too small for me to see any detail. Is letter spacing subpixel at > small sizes? http://dev.l-c-n.com/_b/dejavu-12px.png (not that I would recommend it for body text, but it does display fine) BTW - people may run into this ExtraLight face with Gecko 2 / Firefox 4 when / if they specify 'font-weight: lighter' in their stylesheet. It implements the modified spec regarding computed values for 'bolder' and 'lighter' http://www.w3.org/TR/CSS21/fonts.html#font-boldness (the text in the CSS3 font module is somehow clearer: http://www.w3.org/TR/css3-fonts/#font-weight-the-font-weight-property) > Again I'm puzzled. How does one validate a font face? > http://sourceforge.net/projects/dejavu/files/dejavu/2.33/dejavu-fonts-ttf-2.33.zip > has 21 separate files, four of each type, except for the odd ExtraLight with > only one. Are you saying Linux is wrong to supply ExtraLight when 100 weight > book is called? No - I'm saying that the ExtraLight face has a problem. When validating it with FontBook, serious errors are reported, in this case with the kern tables. http://dev.l-c-n.com/_b/dejavu-s-light.png (this has been the case since v15, and has been reported to the Dejavu people) Having that ExtraLight face installed on the system caused Gecko 1.9.0+ on OS X to crash repeatedly at one time. I think that has been somehow worked around. I know Photoshop is also very sensitive to invalid fonts. I don't recommend having DejaVu ExtraLight installed on any version of OS X. Philippe -- Philippe Wittenbergh http://l-c-n.com/ ______________________________________________________________________ css-discuss [css-d@lists.css-discuss.org] http://www.css-discuss.org/mailman/listinfo/css-d List wiki/FAQ -- http://css-discuss.incutio.com/ List policies -- http://css-discuss.org/policies.html Supported by evolt.org -- http://www.evolt.org/help_support_evolt/
