Once you have that you can find it in either applications or in a terminal type gnome-tweak-tool I forgot you will also need the user-themes-extension do a search for that too. Do a google search for installing gnome shell themes there are a lot of how to's and video's on youtube that show you how to install it.
hahaha no i was going with awoken white icons, and used your black widow theme to make the screen shot becuase i hade a white, black and red theme. I used that one guys mod to move the gnome shell exstension dock to the bottom, and i modified the file so that it had no background to match your gnome shell theme. it is starting to look super slick.... im just mad you beat me to a theme lol