Please keep in mind the theme chooser has bugs, I have tested this on several devices with out issue but your results may vary. With a recent bug you will need to apply the them by going into styles in the theme manager, then fonts, and wallpapers as you so choose.
Now for the fun part!
What's themed:
Framework
Calculator
Contacts
Dialer
Deskclock
Gallery
CM Messaging
Settings
System UI
CM Music player
Config Panel
CM Updater
AudioFX
Theme manager
Font included: Roboto Condensed