I have created a custom theme in Windows 7. In the "built-in" themes there is a section called [SlideShow] that lists all the images that the theme will rotate through. My custom theme file does not have that section, but still rotates through the images I selected in the GUI. How does Windows know about these slideshow images, and can I just add them to my custom theme file? Edit: Doh! Answered my own question here. I did not scroll down far enough in the theme file (for some reason there are a bunch of blank lines in there). Also, there is a page at http://msdn.microsoft.com about Windows 7 theme file format.
In Windows XP the theme files contained a section that had all the metrics (fonts, font sizes, icon sizes, etc.) for the theme. This made it very easy to copy this info to a new custom theme file. This is no longer stored in the Windows 7 theme files when you save a custom file. Where is this stored now, and can I change it?