emacs-28: Keys in echo area

[Colin Baxter 😺]

Hello,

I've noticed in emacs-28 (and 29) that when keys are displayed in a
message in say the echo buffer; for example, "Type C-c C-l to
display results of compilation.", the "C-c C-l" are in a different color
from that seen in emacs-27. In my case, what used to be a white
foreground on a black background is now a sort of grey on black. How can
I get back to the old appearance seen before emacs-28?

Thanks.

Colin.