How to make history search mode don't display when empty?

[vunhatchuong]

I'm unable to combine zstyle ':autocomplete:*' default-context history-incremental-search-backward and zstyle ':autocomplete:*' ignored-input ''.

My goal is to not show the history search list when I haven't typed anything yet.
This is supposed to not display the history.

Also is there a way to change the pattern matching highlight color during history search?

[marlonrichert]

zstyle ':autocomplete:*' default-context history-incremental-search-backward
zstyle ':autocomplete:history-incremental-search-backward:*' min-input 1

Also is there a way to change the pattern matching highlight color during history search?

Not at present. Feel free to open a feature request for this.