How do I make the start/windows icon in the taskbar bigger than the other icons (or make the latter smaller)?

I know I can change the size of my taskbar icons, but they all share the same. i'd like to make my start/windows icon on the very bottom left corner bigger than the others so it can better stand out (not unlike how it used to be on Windows like with 7 or Vista).

Any advice? I'd be grateful.