Twitter says it is changing the contrast of its new buttons, as users complain about headaches after its redesign that some experts say isn't very accessible (Amanda Silberling/TechCrunch)

Amanda Silberling / TechCrunch:
Twitter says it is changing the contrast of its new buttons, as users complain about headaches after its redesign that some experts say isn't very accessible  —  After teasing its new font in January, Twitter made some major changes to its website and app design this week.