It looks like Mozilla is working on a true OLED theme for Firefox on Android. Unlike the current dark theme, which has a dark gray background, the new theme, if released, will have a pitch-black background that looks great on phones with OLED displays.

It first got noticed when a Reddit user found traces of it in Firefox Nightly. Mozilla’s own bug tracker backs that up.

The bug is titled “[meta] OLED Theme.” It was opened about two weeks ago and lives in the Firefox for Android “Design System and Theming” area. Mozilla’s Gabriel Luong filed it and linked a private Figma file. So we don’t know how it looks just yet.

One thing to keep in mind. It’s tagged as a low-priority task, so don’t expect it in the stable app any time soon.

Mozilla has been fiddling with Android settings a lot this year, and not always smoothly. A recent update even broke a popular workaround for reaching advanced settings.

That said, I tried enabling the new hidden setting on my end, running Firefox Nightly 156.0.a1 (build #2016178487).

Once you turn on the hidden Secret Settings menu, there’s now a toggle that says “Show OLED Theme option.” You can flip it on, but don’t expect to see the OLED dark theme option show up in the customization settings.

firefox-oled-theme-option-hidden-setting-android

That’s normal for something caught this early. Firefox for Android has had a steady run of updates this year, from the shake-to-summarize gesture to the arrival of Tab Groups.

An OLED theme is a small one by comparison. But people have been asking for it for years. We’ll update you once there’s an actual theme to switch to.

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