Ключевые слова: application, approved, background, black, chalkboard, choice, circle, class, concept, cross, drawing, flat, funny, game, graphic, handwriting, icon, idea, infographic, interface, label, learn, manager, no, o, option, play, right, score, select, study, success, survey, tac, test, tic, tick, tictactoe, toe, vote, voting, white, write, x, yes,