Safari has some strange colors now

I don’t have a lot of Windows Expertise, but I assume that uninstalling Safari (and iTunes) and try installing them from scratch (after a nice reboot), might fix it.

I'm not a Windows 7 user, but I'd guess Safari is inheriting these colours from your appearance settings in your control panel, especially if you've deleted AppData/reinstalled.

Have a try playing with your Display Control Panel (especially the window appearance settings) to see if that fixes things, maybe Safari is using non-standard windows' colours for its bookmark background.

Windows XP's Advanced Appearance Window: