good timing this was spotted a few days ago and will be amended in GP 2.5.
We don’t have a firm release date for the update yet but it shouldn’t long.
In the meantime the speak: none; property is a legacy CSS value and to the best of my knowledge still supported by browsers and screen readers.
Thank you for your prompt response.
Thanks for following up even if the problem was with another plugin.
I am very satisfied with GeneratePress.
Thanks again for your good work.