Since it's obviously designed for a Holy Paladin, maybe it would be ideal to add some more trackers in it. I haven't tried the addon myself yet, so I apologize if this has already been done. I'm just installing it now to see how I like it.
Sacred Shield Timer. A timer to recognize sacred shield timer would be great as well. But keep in mind talents in prot that increase the duration.
Add a timer to show the HoT from Sacred Shield + FoL. Would be nice to be able to track the duration of that HoT a little better.
Click to refresh. Allow the timer/icon to be clicked to refresh the buff on that target.
Again, I'm sorry if any or all of those are in it, but that would make a very great Holy Pally addon if they are.