QWERTY, please include more details when you file bugs. I don't know what "use black background for Library" means. Do you mean you're using the Dark theme, and you'd like the Library window to match? Do you want the Library to match the Firefox theme, and use a light background if you're using the default theme? Do you want the columns in the tree view to be darker? Why (or why not)? Can you attach a screenshot or mock-up of what you'd like to see? I suspect this will end up as a WONTFIX, but we can't really help if we don't understand what you want. :-( The more details you can provide in your bugs, the better. Thanks in advance.
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