"redundant": it's not, because the icon on the taskbar button has no visual connection to the window. I.e. if you're looking at a bunch of cascaded windows the icon on the taskbar won't help you identify them.
"tacky": and the icon on the taskbar button is not? IMHO the small round button is ugly, I liked the application icons better. They added some color and variety to the otherwise bland title bar.
"and often clashes with the theme": and the icon on the taskbar button does not?
"redundant": it's not, because the icon on the taskbar button has no visual connection to the window. I.e. if you're looking at a bunch of cascaded windows the icon on the taskbar won't help you identify them.
"tacky": and the icon on the taskbar button is not? IMHO the small round button is ugly, I liked the application icons better. They added some color and variety to the otherwise bland title bar.
"and often clashes with the theme": and the icon on the taskbar button does not?