Private Windows should be dark themed by default

[Sisebuto_]

Title is descriptive enough. My suggestion:

• Persistently dark themed private windows by default.
• Option to toggle dark theme in private windows on and off in Themes setting and/or Privacy settings.

[Jon]

Thanks for submitting an idea to the Mozilla Connect community! Your idea is now open to votes (aka kudos) and comments.

[Nich]

Black color of the Private Window, instead of purple

Purple color, has nothing to do with privacy, do it like black in other browsers!