A simple theme for Siri that changes the mic colour to an 'old style'. Still a slight work in progress, for iOS 6 only (because Apple changed where the mic image files are stored). Update coming soon to support iOS 5 & the linen background, as well as various other tweaks. Enjoy.
For iOS 6 only (as mentioned). Still a few things to change.
Add my Cydia repo for faster updates & more themes: http://applebyte.x50x.net/repo
Apply with Winterboard