[tor-bugs] #32220 [Applications/Tor Browser]: Change letterboxing color when dark theme is enabled

[Tor Bug Tracker & Wiki]

#32220: Change letterboxing color when dark theme is enabled
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 Reporter:  cypherpunks                          |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:  closed
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:  fixed
 Keywords:  tbb-9.0-issues, tbb-9.0.1-can, ux-   |  Actual Points:  5
  team, TorBrowserTeam201911R, tbb-backport      |
Parent ID:                                       |         Points:  2
 Reviewer:                                       |        Sponsor:
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Comment (by opara):

 Just wanted to mention here that setting {{{ui.systemUsesDarkTheme: 1}}}
 and {{{browser.in-content.dark-mode: true}}} in {{{about:config}}} will
 change the latest Tor Browser to use a dark letterbox border (as well as
 dark Preferences page, Add-ons page, etc). Since these settings may also
 enable the CSS prefers-color-scheme feature, these settings may make you
 fingerprintable.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32220#comment:23>
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