I've just installed Toad for MySQL and on startup, I'm being asked to select a skin for the (winforms?) application. The impressive thing is that you can select from a huge list of skins and the app immediately updates. Doing some Googling pointed me to the DevExpress control toolkit - is that it?
As far as I know Toad for MySQL is based on DevExpress WinForms controls. Thus the DevExpress Skins technology is available for this application out-of-the-box.
You can read more about Skins here: Skins Overview.