I am working on WinXP Pro.

When I open Control Panel--->Display & navigate to the 'Settings' tab,
the 'Color Quality' dropdown menu lists only 2 options - Medium (16
bit) & Highest (32 bit).

Are these two the only 2 options provided by WinXP Pro in the 'Color
Quality' dropdown?

The reason why I am asking this is because I feel the colors of the
icons, fonts etc. are a bit different than what they should be.

I am using the silver 'Color Scheme' (Control
Panel--->Display--->Appearance tab)