[Interest] fusion style on windows platform

[maitai]

Hello,

My application is loading fusion style (QWidget-based, qt5.4.1). For 
various users using exactly the same platform (windows 7 64 bits), the 
look is not exactly identical. Especially the QRadioButtons are much 
bigger and different for some of them (and quite ugly but well...). 
Changing the windows 7 theme doesn't affect qt style so it's not coming 
from that...

Is there any explanation for that? May it be a deployment issue?