I've been using my Zaurus a lot more lately, since it's too hot to use my desktop PC.
I noticed that the favorites folders are somewhat difficult to discern between an open folder and a closed one.
So I edited the open folder to show as blue.
This is a 28 x 28 *.png file that is in the buttons directory, (as shown in previous post on page 2 of this thread).
Copy it to your buttons directory and rename your opdiropen.png to opdiropen-orig.png
Now rename this file from opdiropen-blu.png to opdiropen.png
I've posted a screenshot to show how it looks in Opera's bookmarks.
BTW, this is a 28 x 28 image and is intended to be used with the "buttons" files that I posted on page 2 of this thread.
EDIT, I know this isn't the best looking folder out there, but I haven't figured how to make Cloverpaint save to 28x28 instead of 480x640.
(It adds the entire background space, in it's window, to any image you save.)
I used Visual-Q to "reverse" the color.