“Wine allows users to run Windows programs natively under Linux
without paying a dime. However, there’s a tiny problem: programs
running in Wine don’t look so great. They don’t even try to fit
into your native GNOME or KDE color scheme or use your preferred
fonts. You could use a Windows theme, but themes make Wine run
extremely slowly. Luckily, with a little configuration editing,
it’s easy to make Wine applications look at lot more like the rest
of the apps on your desktop.“To integrate Wine applications with a GNOME desktop, first run
the winecfg utility and switch to the Desktop Integration
tab…”