user interface line icons collection. navigation, buttons, menus, layout, forms, icons, font and linear

vector icon line sign navigation buttons menus layout forms icons font interaction feedback animations colors themes images graphics consistency simplicity clarity accessibility responsiveness intuitiveness flexibility usercenteredness scalability usability aesthetics localization personalization adaptability userfriendliness ergonomics affordance hierarchy user experience ux interface ui gestalt principles skeuomorphism flat design material atomic systems progressive disclosure cognitive load humancomputer hci emotional brainstorming