Ключевые слова: 2015, 3d, abstract, art, background, banner, block, blue, box, calendar, card, celebrate, celebration, cell, chart, christmas, color, concept, date, day, design, elegant, event, geometric, graphic, greeting, happy, holiday, illustration, light, merry, new, number, party, pixel, poster, season, shadow, shape, sign, square, symbol, text, time, white, winter, xmas, year,