Ключевые слова: backgrounds, behavior, blue, brain, clock, cogitation, computer graphic, computer icon, concentration, concepts, contain, contemplation, creativity, design, design element, digitally generated image, distraught, enjoyment, expressing negativity, expressing positivity, flat design, human head, human heart, human mind, icon set, ideas, illustration and painting, illustrations and vector art, imagination, inside of, inspiration, leisure games, love, male, men, motivation, outline, part of, people, philosopher, sex, sexual activity, sexual issues, shape, skull, speech bubble, thinking, time, touching, worried,