Display a folder icon for Stacks!
There was a workaround a while back that explained how to avoid having Stacks that never look the same. Apple really fixed this in 10.5.2 and I think it is one of the biggest improvement in this update. There is now a new option that will let you choose how to display a stack. The options are "Folder" or "Stack". The "stack" looks just like it always did since 10.5.0, but the "folder" actually brings the folder icon look to the stacks. It can easily be changed by right-clicking on the stack: