Before I find the time to answer in full:
Windows and fonts are already scale-able and have always been.
IŽm surprised you didnŽt know that Suibom. 0ô
Just look under "u" and/or "setting" (I guess in English, not sure here) and youŽll find all you want to change inside the windows and much of what you can change on-screen. Including window/fonts colors and the size of the font.
Many windows (not every single one, admitted) are scale-able by simply clicking on a corner and hold/drag into the wanted size.
More later.
And IŽll try to be nice
CU
Acridiel