A little help with CdArt please

Hi guys
I’ve posted in the Cdarts thread but I don’t think many people go on there.
I’m trying to get my music setup with cdarts add-on on Kodi krypton.
It’s all installed ok and Cdart seems to have downloaded the fanart ok into the folder I set.
Problem is when I go into my music library Kodi still only shows the low resolution jpegs that are embedded.
Can someone please tell me which setting in Kodi I need to change to tell it to read from CdArts as I can’t find it anywhere
Cheers