Thanks ronr1999! I just solved it. PickPlugins was right in my case, it was the jquery-ui CSS messing with me.
I have the same issue but that code is not working for me. I’ve tried everything at this point but the accordion simply hates me.
*Edit
Nvm! It was a jquery-ui issue like PickPlugins said. I just changed the color directly in the file 😀 Thanks!
