Options.All Editions
The buttons in the toolbars are assigned a certain size based on your screen size. You can change this size in the Preference Options dialog box.
To configure the button size:
1. Choose Preference
Options.
2. Click the 
beside System.
3. Click Interface.
4. From the Button size list, select Small, Medium, or Large.
Three size options for buttons:
Small: 
Medium: 
Large: 
(actual size)
5. Click Save. Click OK.
See also