Default [Q]System/Default font location

I run into some "problems" when I've tried to change some fonts. The problem was that for some applications (messaging appl or skype for ex.) the font used for typing messages is not changing.

I've tried FontChanger, even it's advanced option to replace each idividual font, still those applications are displaying a different one.

I've even used QtADB to access /system/fonts folder and saw the fonts there are replaced (checked the timestamp and dimension), I also delete the "fallback" file..nothing changes.

The point is that I use a localised keyboard that uses Eastern European character set (SwiftKey X). Some of those characters are displayed as rectangles or as spaces (even if the receiving party see them if has the right font) and that's anoying.

As messaging appl I use ChompSMS and for that I can change the font within the application. By default the "System" package is used and regardless of the font chosen from there, some chars from the extended set are not displayed even if the font has support for that set. As soon as I choose a different font package, they are displayed ok.
The bad thing is that for Skype I dont have such an option to change the font so I was wondering how can I change it globally.

The switch to "Romanian" from Language & Keyboard settings is not an option for me because it does not change only the font character set but also the language of the phone interface itself. I want to have everything in English, just the characters displayed properly.

I've attached also a print screen to see what I'm talking about. At 1 you can see the letter "t" having a cedille under it (this is how it should look like) and at 2 and 3, the letter it's not shown at all. That means the font cannot display it or does not has support for that character set (Eastern European)

HOW can I make it displaying properly without changing the setting for Language & Keyboard to Romanian?

Any help appreciated
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