How To Customize Title Bar & Other System Fonts in Windows 7

Your screen will dim momentarily as Windows applies the theme changes.

Moments later, you’ll see your new font style on your window borders.  If you chose a larger font than the Windows standard, your window border and buttons will be larger also.

Alternately, if you choose a smaller font size, your window buttons will shrink.  Feel free to play with it until it looks perfect. 😀

You can continue your tweaking with other parts of the UI, such as the file menu font.  Here notice that we have Segoe Script in the file menu, along with our customized window border font.

Here is our new right-click menu with Segoe Script font; when you change the file menu font, the right-click menus change the same.

If you’d like to go back to your original settings, you can change the fonts back by hand as before, or just select one of the other themes in the Personalization pane to revert to the default settings.

via howtogeek