Some unicodes in vscodium editor have blocks around them

[tianyi_zhang]

My code in vscodium editor looks like this:

Does anybody know why α, γ have blocks around them?
My julia extension is v1.124.2, VSCodium is 1.94.2

[nsajko]

This is a purported security feature of VS Code, unrelated to Julia. Either choose to trust the opened file, or modify some of the “Unicode Highlight” settings.

Context:

Trojan Source

[tianyi_zhang]

Thanks! I figured it out.
It turns out this is not a workspace trust problem, instead this setting editor.unicodeHighlight.ambiguousCharacters = false is needed to cancel the highlight.