1. Click Tools, then Options
2. Select Fonts and Colors (under Environment). Under Show settings for: select Text Editor and change the size.
3. The font size is changed in the Query window.
4. Select Tools, then Options. Select Fonts and Colors (under Environment). Under Show settings for: select Environment and change the font and then the size.
5. The font size is now changed in the Object Explorer.
Note also the Zoom dropdown in the query window.
