Steps to Reproduce:

1. Have a profile with following settings

{
    "window.autoDetectColorScheme": true,
    "workbench.preferredDarkColorTheme": "Abyss",
    "workbench.colorTheme": "Abyss",
    "workbench.preferredHighContrastColorTheme": "Abyss",
}

2. From this profile, create a Doc Writer Profile - Settings > Profile > Create Profile... > Doc Writer
   🐛 Theme of Doc Writer profile was reset to Abyss

CC @joaomoreno