It does look small for a 1680x1050 screen if you mean the size... font type is another issue.
You may have selected the small fonts selection in the installer, my installer has two colors, black and standard tan.
Each has 2 basic choices of a HUD only or a HUD and GUI change, (GUI is the main menu and HUD is the player screen area)
Each of those has a further choice of small and normal fonts, image below has the HUD and GUI small fonts selected....
For size you just run it again and select the entries without "Small font" beside it.
Manual edits to font size or font type:
Now if it is the actual font type you have some manual edits to do.