You have to install these weakauras aswell as they are essential to complete the pack: https://wago.io/xf9RzxfwP / https://wago.io/m0iEZH8q9 / https://wago.io/9Uw02GbOb
If you have any question about it please let me know :) Also the greyed out spell will light up it's original spell color whenever you got an heal sphere :)