One of the saving graces of using Twitter at night is the built-in night mode theme that lets you cut down on all the white space by switching to it a darker background with light text.
Once you enable this dark mode, your eyes can finally take the load off and stop straining, but Twitter doesn’t exactly make toggling this feature on and off a cinch. That’s where a new free jailbreak tweak called TwitterThemeToggler comes into play.