Today, Twitter announced expanded 'dark mode' options for iOS users. Previously, Twitter offered a blue/gray dark mode theme, but they've added a true black/white “Lights Out” mode, and an automated dark mode.
“Giving more people options to personalize their experience on Twitter based on what makes them most comfortable is what the latest update to Dark Mode is all about,” Bryan Haggerty, Senior Design Manager at Twitter, said in the company's announcement.
Dim: Dim is the current Dark Mode theme that we introduced in 2016 – a blue/grey color that still gives people a more comfortable way to enjoy Twitter for any environment you’re in and helps reduce eye strain in low lit environments.
Lights Out: Our new theme for Dark Mode, which is a pure black color palette that emits no light since the pixels are turned off. This is a great option for those who want an even darker theme for low lit environments that reduces eye strain, and can potentially help with saving battery.
Automatic Dark Mode: Now, Twitter for iOS devices can enable automatic dark mode to switch from light to the dark mode theme of their choice according to their timezone. This feature takes the burden off of people to make the adjustments. If you’re using Twitter all day long, it’s better on the eyes to have a tool that adjusts for the varying environments, contexts, and atmospheres you’ll experience throughout the day.
You should be able to launch the new modes with a close/reopen of the app, if updates are enabled.