The addon is supposed to show everything related to interrupting in an intuitive and uncomplicated way.

Features:

Green bar for interruptable casts
Red bar for uninterruptable casts
Purple bar for Moment of Opportunity
Small blue bars represent interrupt armor and turn green when destroyed, yellow when you did it
Random, but consistent icons (deactivatable)
Target prioritizing
Highlighting: highlighted casts are orange and play an optional sound
Setup a macro like this for highlighting in fight:

/interruptor highlight 0

0 - no sound
1 - less annoying sound
2 - more annoying sound

Alternatively you can set it up outside of combat by including the spell name in quotes:

/interruptor highlight 0 "Smash"

Use the command with the same sound option to deactivate again.

Configuration:

Move and scale both Castbar and IA Container (find the corner)
Change Targeting Priority Order
Activate or deactivate icons
Distribution Value: Each number has a different but consistent icon distribution. Useful to change when different casts of a boss have the same or similar icons.
Deactivate Default Castbars
Show Interrupt Armor only during casts
NEW: Select special icon for MoO or keep icon from previous cast
Change all the colors and textures
Build your own look or create a profile on the basis of a predefined one
If you like designing, go to %Appdata%/NCSOFT/Wildstar/Addons/Interruptor/Style and insert your own textures. (Tutorial may come in the future) Feel free to send me your results to include them in the addon!

Planned Features:

Known Bugs:

Note: Most of the textures are taken with permission from here.

Interruptor