Decorative image
Valid XHTML 1.0 Transitional
Web, Workstation & Digital Consulting Services
Yale University Library Web, Workstation & Digital Consulting Services
How and Where to Do the Change in Customizable Templates
Images
Decorate Images and Header Images can be changed at the following area <div id="*****"><img href="....   /></div>, where *** is: see Using New Templates for detail (the menu or text images are been replaces by text). You can use your own images according to the requirement described above or contact Public Interfaces Committee (see detail).
Font Color
The following text color are defined in style sheet by default or by color scheme (yul_01.css etc.), you can change any one of them in your own style sheet.
Font Size
Font size in body is an related one, home page has more controlled fonts for the following areas, web developer might want to add more font  style for their sub page:
Background Color
The following areas has background color according to their color scheme:
Layout
Most layout are controlled by <div> tag with id, can't be changed.  But you might want to change some of the followings:
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