Create an icon collection that represents the objects, symbols, and mood of the month of [Month]. They should be unified under a single theme. The background is pure white. Place the name of the month, "{argument name="month name" default="December"}", at the top center of the image as a minimal and balanced title. Position it symmetrically on a grid, visually integrating it with the overall design. The icons should be rendered in a colorful yet subdued 3D style, using textures and atmospheric lighting appropriate for the season. They should reflect the essence of {argument name="month name" default="December"} in Japan. Maintain consistent proportions, materials, and visual language across all icons and the title.