Comment 21 for bug 713950

This is an improved configuration for zh_TW.

Good part:
1. The best fonts having the characters of most used language are selected prior to the second one and so one to expand the character coverage step by step. (Chinese > English > Japanese > Korean > other Western languages(eg. French, Spanish, German, Russia...)

2. It provides the same visual appearance as the original one. (Latin characters by DejaVu + CJK chracters by WenQuanYi Micro Hei.) Many users insist on that this visual appearance is better than Latin + CJK characters all by WenQuanYi Micro Hei.

3. It separates "do some tricks to have better looking, more extended support for Latin typography and the preference for specific fonts" idea from "font selection order for specific language users".

Controversial part:
Some programs not following the fontconfig settings seem to work properly when only Chinese characters are used in the content. (Most users may accept this side effect, while some commenters here may not.)

However, "Bind WenQuanYi Micro Hei with DejaVu" part in the improved configuration is still not supported by these programs, they will show the Latin parts of WenQuanYi Micro Hei but not of DejaVu. And the missing characters of WenQuanYi Micro Hei won't still be substituted by the later ones in the order list, just displaying "white space" for those characters. Those programs not supporting fontconfig settings well can still be found by these clues.

People who are interesting in testing my proposed file are welcome to test it if it provides the same user experiment for Chinese (Taiwan) user or not. Advice is always welcome, too.