Kobo Forma - 4.11.11911 update removed fullscreen reading

I used this link to get full-screen reading:
https://blog.the-ebook-reader.com/20...kobo-ereaders/

However, inserting this below into the eReader.config file does nothing anymore. In Reading Settings, I see new checkboxes next to Show Title and Show Footer. But when I unselect them, the text still doesn't become full-screen. There's only empty space where the title and page numbers would go.

[FeatureSettings]
FullScreenReading=true