Lead Developer
Ok, let’s try this again: https://gist.github.com/generatepress/f5e4f6d1795cf6bb4c6a
That code should remove the highlight from the Blog menu item, but keep the highlight while on the main forum pages (yoursite.com/forums).
Documentation: http://docs.generatepress.com/
Adding CSS: http://docs.generatepress.com/article/adding-css/
Ongoing Development: https://generatepress.com/ongoing-development