How can i change the error.marker symbol?

"'BugFix@AutoIt' via scite-interest" <[email protected]> Thu, 12 Oct 2023 09:11:10 -0700 (PDT)
Newsgroups gmane.editors.scite.general
Message-ID <[email protected]>
I've found only the error.marker properties for back and fore color.
But I want change the symbol. 
I was hoping it would work just like bookmark.symbol.
How should I proceed here?

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