Just thought I'd make this thread for folks getting started on Windows 7 theming and also for those of us who have been at it for a while now.
Vista was a lot more open in terms of independent styling. Windows 7 shares a lot more resources now, which is typically a great thing -- but not for us!
They also introduced a new set of graphics just for Explorer (Header, ListItem, GroupHeader, etc), so you'll have to update that part of your theme, also.
So, some troubles I have ran into:
1. No independent styling for Explorer group text. I wanted to make them smaller without affecting the item text in Explorer. Instead it relies on a global property now and 'scales' it down.
2. Can't independently change Explorer Searchbox text anymore -- in Vista this was possible.
3. No more fancy 'More Program' buttons like the one below -- Windows 7 chooses to ignore the image state it
should use (JumpListItem) and instead shares with the New Program state image, resulting in stretchy graphics. Unfortunately, it also ignores the sizing margins there, so I'll have to strip this neat look for usability sake.
What are some of your problems?