Ключевые слова: accessibility, app design, button design, buttons, design guidelines, design patterns, design principles, digital design, graphic design, human factors, humancomputer interaction, information architecture, interaction design, interactive elements, interface design, modern design, on off toggle, slider, switch design, toggle switch, ui ux, usability, usability testing, user experience, user interface, user research, usercentered design, visual design, web design,