Ключевые слова: arrow, arrowheads, backward, basic ui elements, begin, behind, button, circle, circular, collection, communication, connection, controller, cursor, designator, directional, front, icon, isolated, line, linear, load, loop, marker, navigation, network, next, outline, pointer, recycle, redo, refresh, reload, repeat, reset, restart, revise, revision, rewind, rotation, round, shadow, sign, switch, symbol, synchronize, turn, undo,