Return of Reckoning

Hello. I did a lot of xrealming for PvD forts not long time ago and was curious how much crests I earn this way. I didn't find existing solution, so I made my own.
Addon is very simple and I hope I didn't messed up a lot, so far it works well on my end. I had zero knowledge of LUA and game API, but with good old copy-paste from existing addons, I managed to make it.
It has 2 modes of display, shows you current amount of crests and amount earned in session on mouse-over or only earned crests. You can change mode by clicking on it with RMB.
Clicking on it with LMB resets counter.

Code link: https://github.com/FlorianEstheim/ror-addons

Looks good so far. Only needs a 3rd toggle that shows how many crests are needed towards a goal. I will add it to the next warboard zip on Idrinth's when I update it again.

Thanks. Didn't thought about setting goals, but I thought about adding tracking pve crests too, but I hate PvE and don't think other currencies that important.