Windows® 7 ClearType® Fonts
The availability of higher resolution font rendering techniques like ClearType® in Windows 7 has had an important effect on the design of fonts for onscreen reading. As new technologies and printing styles were developed from the early days of the printing press, typefaces were redesigned to take advantage of those technologies. Many of the popular typefaces are still in use today included “ink traps” into the design so that ink would not stop up key features of a glyph. This is a factor of making particular design choices in the font in order to work the best with the technology.
In Windows® 7 language all Microsoft Office applications will not choose to render with the default settings. Internet Explorer® 8 and Microsoft® Office in Windows® 7 will default in some cases to using ClearType® rendering. Some applications that do not use bi-level rendering and use fonts tuned for ClearType® may choose ClearType® rendering to maintain the benefits of the font designs. Some applications would reflow if they were changed to bi-level or grayscale rendering as they need higher precision glyph widths like 'sub-pixel positioning' or 'natural width ClearType®'. Some of the applications like Adobe® Reader® have their own inbuilt text rendering engine and thus these type of applications are independent of the Windows® graphics platforms. Java™ on Windows® 7 also uses its own rendering techniques.
ClearType® rendering will remain on with the Windows® 7 Internet Explorer® so that Segoe® UI will keep its optimal design and it could be problematic, leading to issues like reflowing dialog box entries, missing text due to wrapping, unlabeled buttons if you change the system font to any other font from Segoe® UI font. We know many would value global changes to the fonts used by Windows®, we cannot have total flexibility on the system font settings at this time because the reliability across resolutions, DPI and languages to name a few issues should be maintained properly.
Where ClearType® is not available, there are a few appeasements in the fonts to handle some scenarios. An unusual technique was used to attempt to improve the quality of the font rendering in the ClearType® font Calibri®. Also, the Calibri® font had some bitmap fonts embedded in the outline file at a few key sizes. When bi-level rendering is requested then these bitmaps kick in.
Going forward, much of the researches is in finding ways to make the supreme quality text rendering more accessible to everyone. As we know that each visual system has its own characteristics. So, it would also be nice to tune for visual system characteristics as the ClearType® tuner allows us to tune the algorithm for display characteristics. For example, 7% of the male population is color blind in the United States. So, the ClearType® algorithm should be improve in a way that text for a colorblind reader is even better than for a reader without color blindness. Those people with high color sensitivity and lower visual acuity would be just as important for researching ways to improve text rendering.
If you want to know more about Windows® 7 ClearType®, you can call any time to iYogi and seek assistance for any problem related with this software. We promise you Good Technology, Good Karma!