CocOpenFloat equivalent event for pum?

[creasty]

Would like to modify &winhighlight of the custom popup menu.

https://github.com/creasty/dotfiles/blob/58d9edbdc5b0286695c2e5a281f70931a12d7b4a/nvim/autoload/user/plugin/coc.vim#L79-L82

[chemzqm]

CocOpenFloat is fired for the pum, and seems you don't need to remove Search highlight since it's not added to winhighlight.

[creasty]

No, it actually removes Search highlight by adding Search: to &winhighlight, and it works well with normal floats but not with pum.

Normal floats

With &winhighlight=Search::

Without &winhighlight=Search::

PUM

Highlight remains: