Lucid may not be getting a new GTK theme but it will still be getting an entirely new look.

Ubuntu’s Ayatana team (most famed for creating those awesome ‘new’ notification balloons that came in Jaunty) are currently testing a super-duper enhanced version of GTK+ that adds RGBA support (think Windows Aero) and client side window decoration.

Only a few months ago we posted a laborious and complex solution for hacking RGBA support in Ubuntu, but thanks to the Ubuntu Ayatana Team it will arrive out-of-the-box in Ubuntu 10.04 and, if suitably tested, will be enabled by default.

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Also: Ubuntu 10.04 LTS "Lucid Lynx" Alpha 1 Released