V8 layer palette close icon not visible

Hi,
V8
In V5 the red dot with X was visible top right on layer palette.
In V8 there is nothing visible, until move around over area . someone has decided we dont need to see it ?
also the cogwheel.
In V5 the top bar was a light blue, in V8 its grey, and grey on grey doesnt show.

why the changes ?

How can I get it to remain visible as in V5 ?

Cheers

Steve

Hi Steve -

In default light mode, that looks like this here:
image

-wim