Change font size in entering file name in save as box

http://i.imgur.com/m2Y0nKN.png

Link to screenshot above. I mean where you type in the name of the file, down there at the bottom of the dialog box. Highlighted in blue in this picture. How do I change font size. and also font, for that matter. Also, this has got to be an extremely common problem. What are the words I can use to find this with a search engine?

Too easy?

Added picture---



http://www.eightforums.com/tutorials/2598-screenshots-files-upload-post-eight-forums.html

I think what you see and want to change probably is a system setting and as such would affect a lot of displayed data.
Go to Control Panel, Display and choose a different setting such as 125% or 150%, but again that will affect more than what you asked about. The view of the list of files may be increased or decreased using the Ctrl plus the + key or Ctrl and mouse wheel but the dialog boxes stay the same.

Thanks all. I guess that's about as solved as it's going to get, so I'll mark it.