does not apply the settings from VS Code settings.json

[KOJ-Factory]

I am developing PowerShell scripts in Shift-JIS. After applying the settings below, VS Code displays diffs correctly. However, (neo) Git Graph still shows garbled characters.

settings.json

     "[powershell]": {
        "files.encoding": "shiftjis"
    }

Environment

• VS Code version: 1.129.1
• Extension version: 0.4.0
• OS:Win10